Senate Republican Leader Mitch McConnell is back on Capitol Hill. McConnell returned Monday nearly six weeks after he fell at a Washington hotel and suffered a concussion. The Kentucky Republican has been recovering at home since he was released from a rehab center in late March. Meanwhile, Democratic Senator John Fetterman of Pennsylvania also returned to work Monday for the first time since he was hospitalized for clinical depression. He spent six weeks at Walter Reed National Military Medical Center before he returned home last month.