Video from a Donald Trump rally in Tucson on Saturday appears to show the billionaire businessman's campaign manager grabbing the collar of a protester, who then stumbled backward.

The rally inside the Tucson Convention Center came after Trump spoke to supporters earlier in the day in a Phoenix suburb where he was also met by protesters. 

In the video, posted by a CBS News reporter, a man who is identified as campaign manager Corey Lewandowski grabs a young protester by the collar. 

Hundreds of Donald Trump supporters abandoned their cars on a highway Saturday and walked three miles to the GOP front-runner’s rally after protesters shut the main road leading to the park where he was speaking.

Doyle Perry, 66, walked with a cane because of nerve damage to his foot from a bullet wound he suffered while serving in the Army.

“I’m looking at all the candidates,” Perry said, adding that he favored Sen. Ted Cruz. “But Trump’s going to win” the Arizona primary on Tuesday.

Donald Trump struck a combative posture on illegal immigration Saturday as he sought to rally Arizona Republicans three days before the state’s winner-take-all presidential primary.

Speaking to several thousand supporters in this conservative white suburb of Phoenix, the New York billionaire described himself as tougher than rivals Ted Cruz and John Kasich on illegal immigration.

I would hope that all of us are rightly appalled at the divisive, bigoted and xenophobic comments of people like Donald Trump.