WATCH: An Inside Look at the Racism, Anger and Violence at Donald Trump Rallies

CNN delves into the implications of footage collected by New York Times reporters from inside Donald Trump rallies.

CNN

AP - Donald Trump is reassuring his supporters that, despite a tumultuous week, his campaign "has never been more united."

At a rally in Daytona Beach, Florida, Trump said "the campaign is doing really well."

"I would say right now it's the best we've been in terms of being united," he said.

Trump has rattled many Republicans with his moves in recent days. He has escalated his feud with the family of a Muslim-American soldier killed in Iraq. He refused to endorse House Speaker Paul Ryan and Sen. John McCain. And he suggested that the general election could be "rigged."