Bloomberg spokesperson pummels Donald Trump Jr with numerous examples of his dad’s racism after he attacks former NY mayor
Donald Trump, Jr. speaking with attendees at the 2018 Student Action Summit hosted by Turning Point USA at the Palm Beach County Convention Center in West Palm Beach, Florida. (Gage Skidmore/Flickr)

Donald Trump Jr. circulated a viral video of Mike Bloomberg praising New York City's controversial "stop-and-frisk" policy -- but one of his father's biographers pointed out more than a dozen examples of the president's racism.

In the video, Bloomberg defends the police policy that was widely condemned as racist, and President Donald Trump's eldest son pushed out a clip of the former mayor's remarks as he gains traction in the Democratic primary.

But "TrumpNation" author Tim O'Brien -- now a Bloomberg campaign senior adviser -- dug up numerous instances where the president engaged in racist behavior.

Trump and his father were censured in the 1973 by the Department of Justice for discriminating against black prospective tenants, and a senior executive at his Atlantic City casinos described Trump as a bigot, according to O'Brien.

"Everyone was subject to judgment," said Jack O’Donnell, who helped Trump run his casinos in the 1980s. "It could be their ethnicity, their gender, their religion.’”

Trump paid for a series of newspaper and broadcast ads smearing the Mohawk tribe -- which was seeking a gambling license back then -- as drug dealers and criminals, O'Brien said, and his ex-wife Ivana Trump told her lawyer that the future president kept a copy of Hitler’s collected speeches by his bedside.

Trump has also slurred a Latino judge overseeing one of his fraud lawsuits, hired apparent white nationalists such as Stephen Miller and Steve Bannon, and retweeted white supremacist accounts on Twitter.

The president also equivocated when neo-Nazi supporters marched in Charlottesville, Virginia, and called on Democratic women lawmakers of color to go back to their home countries -- even though only one was born outside the U.S.