From a Wall Street Journal story by Siobhan Hughes headlined “Sen John Fetterman Set for Lengthy Hospital Stay”:

Senator John Fetterman could remain hospitalized for more than a month as the Pennsylvania Democrat undergoes treatment for depression, a senior aide said, following a series of health setbacks.

On Wednesday, Mr. Fetterman checked himself into Walter Reed National Military Medical Center, the second hospitalization for the freshman senator in recent weeks. His office said that Mr. Fetterman has experienced depression off and on throughout his life and that the senator voluntarily entered the hospital after consulting with the attending physician for Congress, Dr. Brian P. Monahan.