https://www.politico.com/news/2020/05/19/nasa-human-spaceflight-director-ousted-268327

Loverro, who previously worked at the super-secret National Reconnaissance Office, which builds and launches military satellites, said he was leaving the agency "with a very, very heavy heart" after making some "mistake" during his tenure, according to a letter to the workforce obtained by POLITICO.

"Throughout my long government career of over four and a half decades I have always found it to be true that we are sometimes, as leaders, called on to take risks," Loverro wrote. "The risks we take, whether technical, political, or personal, all have potential consequences if we judge them incorrectly. I took such a risk earlier in the year because I judged it necessary to fulfill our mission. Now, over the balance of time, it is clear that I made a mistake in that choice for which I alone must bear the consequences. "

"My leaving is because of my personal actions, not anything we accomplished together," he continued.

Reached by phone, Loverro declined to offer specifics about his "mistake," but said his departure is not due to a disagreement with NASA Administrator Jim Bridenstine or any safety concerns about next week's launch.