Donald Trump, in his ongoing effort to spur on a Civil War, is holding a campaign rally in Phoenix, Arizona and his white supremacist supporters are waiting for him. While violence hasn t yet broken out, one Trump supporter was heard threatening the life of Arizona Senator John McCain.This Trump supporter is shouting at protestors: "McCain needs to die now!" pic.twitter.com/pwjogHfYgH  David Catanese (@davecatanese) August 22, 2017 Despite the fact that McCain gave us Sarah Palin 10 years ago, to Trump supporters, McCain has failed the loyalty test, especially when he voted against repealing the Affordable Care Act. While Trump didn t mention McCain s name, he, like a seemingly endless number of people, is becoming an enemy of the White House.3 Republicans and 48 Democrats let the American people down. As I said from the beginning, let ObamaCare implode, then deal. Watch!  Donald J. Trump (@realDonaldTrump) July 28, 2017 Normal people responded in exactly the way they should: pic.twitter.com/X6tlFtyZT5  FarNorth49 (@FNorth49) August 22, 2017 Yet every Trump cultist lectures us with fake conspiracies demanding we believe. Right #crocodiletears  Lifelibertyguy (@Lifelibertyguy) August 23, 2017 People will say and do hateful, hurtful things if given permission and Trump has given them both permission and encouragement  Leonard Banco (@BancoLeonard) August 22, 2017 And yet again, more proof Hillary had it right! #Deplorables  Gary Mansfield (@SamBam39) August 22, 2017 Thats just wrong. I dont care what your views are on politics but thats not right. He is a sick man. What a deplorable person.  Mary McLane (@marymac169) August 22, 2017 McCain has cancer   a particularly gruesome form of brain cancer. While he is undergoing treatment, at 80 years old, his life is fragile. That makes threatening his life especially disgusting, but Trump supporters don t care. During the campaign, and now, after his response to the riot in Charlottesville where he equated white supremacists who murdered a woman with protesters, Trump gave them explicit permission to use violence to defend themselves against the changing culture.In the meantime, Secret Service?Featured image via Chip Somodevilla/Getty Images.