The primary mission of the university is the search for truth. Of course, free speech is part of that search. However, in the first 100 plus days, we  have been seeing a presentation of lies, falsehoods, fakery, double  and self-dealing, and his apparent obliviousness to all of this, including  the famous misogyny  statement ("...just grab em by the ...they let you do it..."), discredits his self-righteous cloak of true-believe Christianity. Not to mention his "...no knowledge of"...) statements about the national security advisor, or blind ignorance to the greed going around him. Those who walked out are exercising their right of free speech by refusing to listing to self-aggrandizing and phoney pap spewed by unctuous faux Americans. Those who walked out are stating that the search for truth ended sometime before he entered the room!