I think a President Trump operative leaked both.
NYT, blinded by hated and panic, went for the kill shot.
President Trump successfully had NYT reveal themselves as vengeful fake news
I mean, think about it.
Donald Trump was one of the highest-profile rich guys in America long before he ran for office. Getting cute with his tax returns would have been a suicide mission. Any IRS bureaucrat could have cemented his career legacy by getting that scalp.