The president returns to Phoenix tonight, where he'll hold a campaign-style rally at 10pm EST. The president will visit with border patrol officers ahead of the rally.
Flashback: From Trump's 2015 Phoenix rally, covered by TIME: "As a small group of protestors scuffled with Trump supporters and security as they tried to hold up a banner, Trump quipped, 'I wonder if the Mexican government sent them over here, I think so. We'll take our country back.'"
"If someone is already pre-disposed to disbelieve scientific conclusions around issues like human evolution, climate change, stem cell research or the Big Bang theory because of their religious or political views, learning more about the subject actually increases their disbelief, a new study finds."