The First Amendment to the Constitution reads, "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."
It's interesting that much of the focus today on the First Amendment has to do with the so-called "separation of church and state." Yet, following the first two clauses concerning the freedom of religion there are additional sections about freedom of speech, freedom of the press, and freedom to peaceably assemble and petition for a redress of grievances. Many today, who would quickly proclaim there is an absolute, two-way, impregnable wall between church and state, somehow also assert that for some reason it stops there, and this same impregnable, two-way wall is considered anathema when it comes to other freedoms mentioned in the same amendment. In other words, there is no "separation of speech and state," no "separation of press and state," and no "separation of public protests and state".