Adam Jentleson raised concerns about the senator's mental health after taking office in a piece for New York Magazine's Intelligencer.

Staffers also said Fetterman suffered a near breakdown during deliberations over whether to vote for Pete Hegseth for defense secretary. He allegedly suggested retreating to his parents’ house in York, Pennsylvania, instead of voting, leading one staffer to say the incident “felt like I was looking at a 6- or 8-year-old.”