Recent outbursts and stories surrounding Sen. John Fetterman of Pennsylvania have raised questions from those on Capitol Hill and in his inner circle about his mental health. A video of Fetterman on a flight back to Pittsburgh shows him arguing with a flight attendant over his seat buckle, which the attendant said needed to be visible.

For more than the past year, Sen. John Fetterman (D-PA) has missed among the most votes of any senator, rarely attended committee hearings, and become increasingly isolated from his colleagues amid reports of lingering mental health troubles.