First amendment: "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."
Not first amendment: President can't make executive order X.
Also the logic that since Trump called for y during his campaign means that all his EO are based on y is spurious at best. Trump's making a fool of activist judges from the 9th until Gorsuch gets appointed and the SC hears the case.