Chancellor David Banks announced plans to step down from leading the city’s vast public school system, weeks after federal investigators seized his phones as part of a sprawling probe that has rocked Mayor Eric Adams’ administration.

A City Hall source confirmed Banks will resign, which PIX11 first reported.

The FBI took Banks’ personal and work phones on Sept. 4 during a search of the home he shares with his partner, Deputy Mayor Sheena Wright. Authorities also raided the home of Deputy Mayor for Public Safety Phil Banks, who is David’s brother. The investigation reportedly revolved around David and Phil’s youngest brother, Terence Banks, a retired MTA supervisor who recently founded a government relations firm.

Federal prosecutors were investigating Terence Banks and his company in connection with a bribery scheme, according to the New York Times.

All the Banks brothers have denied wrongdoing.

The resignation represents the latest sign of the chaos engulfing the Adams administration amid a total of at least four federal investigations. In addition to the Banks probe, authorities are investigating a nightlife consulting business run by the former Police Commissioner Edward Caban’s twin brother. As part of that investigation, federal officials seized the commissioner’s probe. Caban resigned earlier this month, citing the “distraction” for the department.

Separately, federal prosecutors in Manhattan are investigating foreign money in Adams’ 2021 campaign.

Federal prosecutors in Brooklyn are investigating Winnie Greco, a prominent Adams adviser and fundraiser.

With Banks’ departure, two of Adams’ most important appointments – the schools chancellor and police commissioner – have resigned after having their phones seized by the feds.

Adams said he had identified Banks as this choice for chancellor years ago, long before he became mayor. Notably, Banks’ partner Sheena Wright served as First Deputy Mayor to Adams; Adams’ partner Tracey Collins as an education department administrator under Banks.

Banks’ signature policy, transforming the way the city’s children are taught to read, is still in its infancy: half of the city’s elementary schools rolled out new curricula this past year, and the other half are set to adopt it in September. He has called the overhaul “legacy” work.

Many national education leaders have praised the literacy initiative, but experts say it’s too early to tell whether the changes are working, periodic assessments haven’t shown much progress yet, and some parents have criticized new curricula as rigid and boring.

Banks was also pursuing another major overhaul of how the city teaches math.

Banks has had to respond to the rise of antisemitism and Islamophobia in schools. While some parents and educators have said his administration has failed to adequately protect students and teachers from discrimination and hate speech, many observers applauded how he handled his appearance before Congress on the subject in May.

“When antisemitism rears its head, I believe we must respond, and we have,” Banks said, while criticizing some members of Congress for staging political theater.

“I would call on Congress, quite frankly, to put the call out to action, to bring us together, to talk about how we solve for this,” Banks said.

His administration has also tussled with parents and City Council members over budget cuts to schools and early education programs.

Before becoming chancellor, Banks launched and led the Eagle Academy For Young Men, a network of schools which mostly serve boys of color,