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.
I think that’s what the letter says. I tried to post the letter (pdf file) and of course, computer challenged that I am, and I made a mess of it, so I just posted the link to the letter.