President Trump Donald John TrumpObama calls on Senate not to fill Ginsburg's vacancy until after election Planned Parenthood: 'The fate of our rights' depends on Ginsburg replacement Progressive group to spend M in ad campaign on Supreme Court vacancy MORE's personal lawyer, Rudy Giuliani Rudy GiulianiGrand jury adds additional counts against Giuliani associates Lev Parnas and and Igor Fruman Juan Williams: Breaking down the debates Giuliani criticizes NYC leadership: 'They're killing this city' MORE, criticized Democratic presidential candidate and former New York City Mayor Michael Bloomberg Michael BloombergTop Democratic super PAC launches Florida ad blitz after Bloomberg donation The Hill's 12:30 Report - Presented by Facebook - Latest with the COVID-19 relief bill negotiations The Memo: 2020 is all about winning Florida MORE on Sunday for walking back his stance on the controversial stop-and-frisk policy that was used during his tenure.

"What is this stuff that he’s condemning stop-and-frisk?" Giuliani rhetorically asked radio show host John Catsimatidis. "I did it for eight years. He did it for 12. I did 100 [thousand] stops. He did 600 [thousand]."

"Now that [Bloomberg] has turned on the program, and turned on [Ray] Kelly… He was 100 percent in favor of that program. As enthusiastic about it as I was," Giuliani added.

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Bloomberg succeeded Giuliani as New York City's mayor in 2002. At the time, Bloomberg ran as a Republican and Giuliani endorsed him.

Stop-and-frisk, a law enforcement practice that disproportionally targeted communities of color in New York, was stopped at the end of Bloomberg's mayoral tenure in 2013. The courts ruled that the policy violated the constitutional rights of minorities in the city.

On Saturday, during a campaign event in Richmond, Va., Bloomberg apologized for his prior stance on the policy and promised supporters that, as president, he would "dismantle systems that are plagued by bias and discrimination."

"I should have acted sooner, and I should have stopped it, and I didn't, and I apologize that for that,” he said at a campaign event in Richmond.

“I’ve listened to their stories. I’ve heard their pain, and their confusion, and their anger, and I’ve learned from them and I’ve grown from them,” he added.

Bloomberg's stance on the policy has been in the spotlight since remarks he made about the policy in 2015 came to light this week.

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At the time, the former mayor defended the policy and described the practice as throwing kids of color "up against the walls" and frisking them.

He also said that "95 percent" of "murders and murderers and murder victims" are male minorities between the ages of 16 to 25.