WASHINGTON >> Pennsylvania Democratic Sen. John Fetterman, still recovering from a stroke, has checked himself into Walter Reed National Military Medical Center to seek treatment for clinical depression, his office said Thursday.

Fetterman, who has struggled with the aftereffects of a stroke he suffered last May, checked himself in Wednesday night, it said.

“While John has experienced depression off and on throughout his life, it only became severe in recent weeks,” his chief of staff, Adam Jentleson, said in a statement.

Fetterman was evaluated Monday by the attending physician of Congress, Dr. Brian P. Monahan, who recommended inpatient care at Walter Reed, Jentleson said.

“John agreed, and he is receiving treatment on a voluntary basis,” Jentleson said. “After examining John, the doctors at Walter Reed told us that John is getting the care he needs.”

Fetterman, 53, is in his first weeks as a U.S. senator after winning the seat held by now-retired Republican Pat Toomey in a hard-fought contest against GOP nominee Dr. Mehmet Oz. Fetterman, who was Pennsylvania’s lieutenant governor, defeated the celebrity heart surgeon by 5 percentage points, flipping a seat that was key to Democrats

Fetterman’s wife, Gisele, said she was proud of Fetterman “for asking for help and getting the care he needs.” “After what he’s been through in the past year, there’s probably no one who wanted to talk about his own health less than John,” she wrote.