Defiant US Attorney Preet Bharara will not resign his post, likely forcing President Trump to fire him, it was reported Saturday.

Bharara and 45 other US Attorneys from the Obama administration on Friday were asked to resign by Attorney General Jeff Sessions.

While that’s a typical for incoming administrations, the pending forced resignation of Bharara was a shocker. That’s because President Trump, shortly after his election, had asked Bharara – the crusading US Attorney for the Southern District of New York who has been a stalwart against public corruption – to stay on board.

Now Bharara is set to force Trump to go back on his pledge and will only leave if he’s fired, federal law enforcement sources told CNN.

The White House told CNN that an official comment would come from the Department of Justice.