These clauses protect the rights of citizens to expression.
There might be more! The State Constitution Tool currently only compares constitutions, but there may be statutes too.
Constitutions
Alabama
That no law shall ever be passed to curtail or restrain the liberty of speech or of the press; and any person may speak, write, and publish his sentiments on all subjects, being responsible for the abuse of that liberty.
Alaska
Every person may freely speak, write, and publish on all subjects, being responsible for the abuse of that right.
Arizona
Every person may freely speak, write, and publish on all subjects, being responsible for the abuse of that right.
Arkansas
The liberty of the press shall forever remain inviolate. The free communication of thoughts and opinions is one of the invaluable rights of man; and all persons may freely write and publish their sentiments on all subjects, being responsible for the abuse of such right. In all criminal prosecutions for libel, the truth may be given in evidence to the jury; and, if it shall appear to the jury that the matter charged as libelous is true, and was published with good motives and for justifiable ends, the party charged shall be acquitted.
California
(a) Every person may freely speak, write and publish his or her sentiments on all subjects, being responsible for the abuse of this right. A law may not restrain or abridge liberty of speech or press. (b) A publisher, editor, reporter, or other person connected with or employed upon a newspaper, magazine, or other periodical publication, or by a press association or wire service, or any person who has been so connected or employed, shall not be adjudged in contempt by a judicial, legislative, or administrative body, or any other body having the power to issue subpoenas, for refusing to disclose the source of any information procured while so connected or employed for publication in a newspaper, magazine or other periodical publication, or for refusing to disclose any unpublished information obtained or prepared in gathering, receiving or processing of information for communication to the public. Nor shall a radio or television news reporter or other person connected with or employed by a radio or television station, or any person who has been so connected or employed, be so adjudged in contempt for refusing to disclose the source of any information procured while so connected or employed for news or news commentary purposes on radio or television, or for refusing to disclose any unpublished information obtained or prepared in gathering, receiving or processing of information for communication to the public. As used in this subdivision, “unpublished information” includes information not disseminated to the public by the person from whom disclosure is sought, whether or not related information has been disseminated and includes, but is not limited to, all notes, outtakes, photographs, tapes or other data of whatever sort not itself disseminated to the public through a medium of communication, whether or not published information based upon or related to such material has been disseminated.
Colorado
No law shall be passed impairing the freedom of speech; every person shall be free to speak, write or publish whatever he will on any subject, being responsible for all abuse of that liberty; and in all suits and prosecutions for libel the truth thereof may be given in evidence, and the jury, under the direction of the court, shall determine the law and the fact.
Connecticut
Every citizen may freely speak, write and publish his sentiments on all subjects, being responsible for the abuse of that liberty.
No law shall ever be passed to curtail or restrain the liberty of speech or of the press.
Delaware
The free communication of thoughts and opinions is one of the invaluable rights of man. The press shall be free to every citizen who undertakes to examine the official conduct of persons acting in a public capacity; and any citizen may freely speak, write and print on any subject, being responsible for the abuse of that liberty. In prosecutions for publications, investigating the proceedings of officers, or where the matter published is proper for public information, the truth thereof may be given in evidence; and in all indictments for libels the jury may determine the facts and the law, as in other cases.
Florida
Every person may speak, write and publish sentiments on all subjects but shall be responsible for the abuse of that right. No law shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions and civil actions for defamation the truth may be given in evidence. If the matter charged as defamatory is true and was published with good motives, the party shall be acquitted or exonerated.
Georgia
No law shall be passed to curtail or restrain the freedom of speech or of the press. Every person may speak, write, and publish sentiments on all subjects but shall be responsible for the abuse of that liberty.
Hawaii
No law shall be enacted respecting an establishment of religion, or prohibiting the free exercise thereof, or abridging the freedom of speech or of the press or the right of the people peaceably to assemble and to petition the government for a redress of grievances.
Idaho
Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that liberty.
Illinois
All persons may speak, write and publish freely, being responsible for the abuse of that liberty. In trials for libel, both civil and criminal, the truth, when published with good motives and for justifiable ends, shall be a sufficient defense.
Indiana
No law shall be passed, restraining the free interchange of thought and opinion, or restricting the right to speak, write, or print, freely, on any subject whatever: but for the abuse of that right, every person shall be responsible.
Iowa
Every person may speak, write, and publish his sentiments on all subjects, being responsible for the abuse of that right. No law shall be passed to restrain or abridge the liberty of speech, or of the press. In all prosecutions or indictments for libel, the truth may be given in evidence to the jury, and if it appears to the jury that the matter charged as libellous was true, and was published with good motives and for justifiable ends, the party shall be acquitted.
Kansas
The liberty of the press shall be inviolate; and all persons may freely speak, write or publish their sentiments on all subjects, being responsible for the abuse of such rights; and in all civil or criminal actions for libel, the truth may be given in evidence to the jury, and if it shall appear that the alleged libelous matter was published for justifiable ends, the accused party shall be acquitted.
Kentucky
Printing presses shall be free to every person who undertakes to examine the proceedings of the General Assembly or any branch of government, and no law shall ever be made to restrain the right thereof. Every person may freely and fully speak, write and print on any subject, being responsible for the abuse of that liberty.
Louisiana
No law shall curtail or restrain the freedom of speech or of the press. Every person may speak, write, and publish his sentiments on any subject, but is responsible for abuse of that freedom.
Massachusetts
The liberty of the press is essential to the security of freedom in a state: it ought not, therefore, to be restrained in this commonwealth. The right of free speech shall not be abridged.
Maryland
That the liberty of the press ought to be inviolably preserved; that every citizen of the State ought to be allowed to speak, write and publish his sentiments on all subjects, being responsible for the abuse of that privilege.
Maine
Every citizen may freely speak, write and publish sentiments on any subject, being responsible for the abuse of this liberty; no laws shall be passed regulating or restraining the freedom of the press; and in prosecutions for any publication respecting the official conduct of people in public capacity, or the qualifications of those who are candidates for the suffrages of the people, or where the matter published is proper for public information, the truth thereof may be given in evidence, and in all indictments for libels, the jury, after having received the direction of the court, shall have a right to determine, at their discretion, the law and the fact.
Michigan
Every person may freely speak, write, express and publish his views on all subjects, being responsible for the abuse of such right; and no law shall be enacted to restrain or abridge the liberty of speech or of the press.
Minnesota
The liberty of the press shall forever remain inviolate, and all persons may freely speak, write and publish their sentiments on all subjects, being responsible for the abuse of such right.
Mississippi
The freedom of speech and of the press shall be held sacred; and in all prosecutions for libel the truth may be given in evidence, and the jury shall determine the law and the facts under the direction of the court; and if it shall appear to the jury that the matter charged as libelous is true, and was published with good motives and for justifiable ends, the party shall be acquitted.
Missouri
That no law shall be passed impairing the freedom of speech, no matter by what means communicated: that every person shall be free to say, write or publish, or otherwise communicate whatever he will on any subject, being responsible for all abuses of that liberty; and that in all suits and prosecutions for libel or slander the truth thereof may be given in evidence; and in suits and prosecutions for libel the jury, under the direction of the court, shall determine the law and the facts.
Montana
No law shall be passed impairing the freedom of speech or expression. Every person shall be free to speak or publish whatever he will on any subject, being responsible for all abuse of that liberty. In all suits and prosecutions for libel or slander the truth thereof may be given in evidence; and the jury, under the direction of the court, shall determine the law and the facts.
North Carolina
Freedom of speech and of the press are two of the great bulwarks of liberty and therefore shall never be restrained, but every person shall be held responsible for their abuse.
North Dakota
Every man may freely write, speak and publish his opinions on all subjects, being responsible for the abuse of that privilege. In all civil and criminal trials for libel the truth may be given in evidence, and shall be a sufficient defense when the matter is published with good motives and for justifiable ends; and the jury shall have the same power of giving a general verdict as in other cases; and in all indictments or informations for libels the jury shall have the right to determine the law and the facts under the direction of the court as in other cases.
New Hampshire
Free speech and Liberty of the press are essential to the security of Freedom in a State: They ought, therefore, to be inviolably preserved.
New Jersey
Every person may freely speak, write and publish his sentiments on all subjects, being responsible for the abuse of that right. No law shall be passed to restrain or abridge the liberty of speech or of the press. In all prosecutions or indictments for libel, the truth may be given in evidence to the jury; and if it shall appear to the jury that the matter charged as libelous is true, and was published with good motives and for justifiable ends, the party shall be acquitted; and the jury shall have the right to determine the law and the fact.
New Mexico
Every person may freely speak, write and publish his sentiments on all subjects, being responsible for the abuse of that right; and no law shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions for libels, the truth may be given in evidence to the jury; and if it shall appear to the jury that the matter charged as libelous is true and was published with good motives and for justifiable ends, the party shall be acquitted.
New York
Every citizen may freely speak, write and publish his or her sentiments on all subjects, being responsible for the abuse of that right; and no law shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions or indictments for libels, the truth may be given in evidence to the jury; and if it shall appear to the jury that the matter charged as libelous is true, and was published with good motives and for justifiable ends, the party shall be acquitted; and the jury shall have the right to determine the law and the fact.
Nebraska
Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that liberty; and in all trials for libel, both civil and criminal, the truth when published with good motives, and for justifiable ends, shall be a sufficient defense.
Nevada
Every citizen may freely speak, write and publish his sentiments on all subjects being responsible for the abuse of that right; and no law shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions and civil actions for libels, the truth may be given in evidence to the Jury; and if it shall appear to the Jury that the matter charged as libelous is true and was published with good motives and for justifiable ends, the party shall be acquitted or exonerated.
Ohio
Every citizen may freely speak, write, and publish his sentiments on all subjects, being responsible for the abuse of the right; and no law shall be passed to restrain or abridge the liberty of speech, or of the press. In all criminal prosecutions for libel, the truth may be given in evidence to the jury, and if it shall appear to the jury, that the matter charged as libelous is true, and was published with good motives, and for justifiable ends, the party shall be acquitted.
Oklahoma
Every person may freely speak, write, or publish his sentiments on all subjects, being responsible for the abuse of that right; and no law shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions for libel, the truth of the matter alleged to be libelous may be given in evidence to the jury, and if it shall appear to the jury that the matter charged as libelous be true, and was written or published with good motives and for justifiable ends, the party shall be acquitted.
Oregon
No law shall be passed restraining the free expression of opinion, or restricting the right to speak, write, or print freely on any subject whatever; but every person shall be responsible for the abuse of this right.
Pennsylvania
The printing press shall be free to every person who may undertake to examine the proceedings of the Legislature or any branch of government, and no law shall ever be made to restrain the right thereof. The free communication of thoughts and opinions is one of the invaluable rights of man, and every citizen may freely speak, write and print on any subject, being responsible for the abuse of that liberty. No conviction shall be had in any prosecution for the publication of papers relating to the official conduct of officers or men in public capacity, or to any other matter proper for public investigation or information, where the fact that such publication was not maliciously or negligently made shall be established to the satisfaction of the jury; and in all indictments for libels the jury shall have the right to determine the law and the facts, under the direction of the court, as in other cases.
Rhode Island
The liberty of the press being essential to the security of freedom in a state, any person may publish sentiments on any subject, being responsible for the abuse of that liberty; and in all trials for libel, both civil and criminal, the truth, unless published from malicious motives, shall be sufficient defense to the person charged.
The citizens have a right in a peaceable manner to assemble for their common good, and to apply to those invested with the powers of government, for redress of grievances, or for other purposes, by petition, address, or remonstrance. No law abridging the freedom of speech shall be enacted.
South Carolina
The General Assembly shall make no law respecting an establishment of religion or prohibiting the free exercise thereof, or abridging the freedom of speech or of the press; or the right of the people peaceably to assemble and to petition the government or any department thereof for a redress of grievances.
South Dakota
Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that right. In all trials for libel, both civil and criminal, the truth, when published with good motives and for justifiable ends, shall be a sufficient defense. The jury shall have the right to determine the fact and the law under the direction of the court.
Tennessee
That the printing press shall be free to every person to examine the proceedings of the Legislature; or of any branch or officer of the government, and no law shall ever be made to restrain the right thereof. The free communication of thoughts and opinions, is one of the invaluable rights of man and every citizen may freely speak, write, and print on any subject, being responsible for the abuse of that liberty. But in prosecutions for the publication of papers investigating the official conduct of officers, or men in public capacity, the truth thereof may be given in evidence; and in all indictments for libel, the jury shall have a right to determine the law and the facts, under the direction of the court, as in other criminal cases.
Texas
Every person shall be at liberty to speak, write or publish his opinions on any subject, being responsible for the abuse of that privilege; and no law shall ever be passed curtailing the liberty of speech or of the press. In prosecutions for the publication of papers, investigating the conduct of officers, or men in public capacity, or when the matter published is proper for public information, the truth thereof may be given in evidence. And in all indictments for libels, the jury shall have the right to determine the law and the facts, under the direction of the Court, as in other cases.
US
Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.
Utah
All persons have the inherent and inalienable right to enjoy and defend their lives and liberties; to acquire, possess and protect property; to worship according to the dictates of their consciences; to assemble peaceably, protest against wrongs, and petition for redress of grievances; to communicate freely their thoughts and opinions, being responsible for the abuse of that right.
No law shall be passed to abridge or restrain the freedom of speech or of the press. In all criminal prosecutions for libel the truth may be given in evidence to the jury; and if it shall appear to the jury that the matter charged as libelous is true, and was published with good motives, and for justifiable ends, the party shall be acquitted; and the jury shall have the right to determine the law and the fact.
Virginia
That the freedoms of speech and of the press are among the great bulwarks of liberty, and can never be restrained except by despotic governments; that any citizen may freely speak, write, and publish his sentiments on all subjects, being responsible for the abuse of that right; that the General Assembly shall not pass any law abridging the freedom of speech or of the press, nor the right of the people peaceably to assemble, and to petition the government for the redress of grievances.
Vermont
That the people have a right to freedom of speech, and of writing and publishing their sentiments, concerning the transactions of government, and therefore the freedom of the press ought not to be restrained.
West Virginia
No law abridging the freedom of speech, or of the press, shall be passed; but the Legislature may, by suitable penalties, restrain the publication or sale of obscene books, papers, or pictures, and provide for the punishment of libel, and defamation of character, and for the recovery, in civil actions, by the aggrieved party, of suitable damages for such libel, or defamation.
Washington
Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that right.
Wisconsin
Every person may freely speak, write and publish his sentiments on all subjects, being responsible for the abuse of that right, and no laws shall be passed to restrain or abridge the liberty of speech or of the press. In all criminal prosecutions or indictments for libel, the truth may be given in evidence, and if it shall appear to the jury that the matter charged as libelous be true, and was published with good motives and for justifiable ends, the party shall be acquitted; and the jury shall have the right to determine the law and the fact.
Wyoming
Every person may freely speak, write and publish on all subjects, being responsible for the abuse of that right; and in all trials for libel, both civil and criminal, the truth, when published with good intent and [for] justifiable ends, shall be a sufficient defense, the jury having the right to determine the facts and the law, under direction of the court.