In those roles, Mr. Bragg’s statement said, he “successfully brought cases involving money laundering, witness tampering, mortgage fraud, official misconduct, and bribery.”
He mentioned having prosecuted elected officials, including a New York state senator, Malcolm Smith, and a City Council member, Daniel Halloran, for bribery schemes. And he noted the civil litigation he had overseen against Mr. Trump while at the state attorney general’s office, which included a lawsuit that led to the dissolution of the Trump family’s charitable foundation.
“I know challenging cases and I’m bringing the rigor that I brought to those here,” Mr. Bragg said.
Mr. Bragg, who took office on Jan. 1, has had a rocky tenure. In his first week in office, he issued a memo pledging to send defendants to jail and prison only for the most serious crimes.
After a month of backlash — from police officers, business owners, elected officials and the public — the new district attorney issued a clarification emphasizing that his prosecutors were not bound by the memo and were granted the power to handle their own cases.
At the same time, Mr. Bragg was holding a series of meetings with Mr. Pomerantz, Mr. Dunne and members of the Trump investigative team, as the two senior prosecutors sought to convince the new district attorney and his top aides to allow them to continue presenting evidence to the grand jury about Mr. Trump.
But Mr. Bragg expressed concern, The Times previously reported, particularly about the possibility that the prosecutors might rely on the testimony of Michael D. Cohen, a longtime fixer for Mr. Trump who later turned against his former boss.
Mr. Pomerantz threatened to resign in January, but agreed to stay on in order to make a last-ditch attempt to convince Mr. Bragg that the grand jury presentation should continue. He and Mr. Dunne conducted a series of meetings with the district attorney in February, hoping to convince him to charge Mr. Trump with conspiracy and falsifying business records — in effect, painting the former president as a liar, rather than a thief.
But Mr. Bragg remained unconvinced, and on Feb. 22, told Mr. Pomerantz and Mr. Dunne that he was not ready to proceed. They resigned the next day.