evidence: WASHINGTON (AP) — The video shared by former President Donald Trump features horror movie music and footage of migrants purportedly entering the U.S. from countries including Cameroon, Afghanistan and China. Shots of men with tattoos and videos of violent crime are set against close-ups of people waving and wrapping themselves in American flags. "They’re coming by the thousands," Trump says in the video, posted on his social media site. "We will secure our borders. And we will restore sovereignty." In his speeches and online posts, Trump has ramped up anti-immigrant rhetoric as he seeks the White House a third time, casting migrants as dangerous criminals "poisoning the blood" of America. Hitting the nation’s deepest fault lines of race and national identity, his messaging often relies on falsehoods about migration. But it resonates with many of his core supporters going back a decade, to when "build the wall" chants began to ring out at his rallies. WATCH: Trump under fire again for violent language and dehumanizing anti-immigrant rhetoric President Joe Biden and his allies discuss the border very differently.