McConnell was admitted to the hospital on June 14, according to a statement from his office that only said he was “receiving excellent care.” A statement a week later said that he would not be voting that week. And on Thursday, a new statement said that he “continues to improve” and ”appreciates the outpouring of support he’s receiving while he continues his recovery in the hospital.”

His office has not released any updates since then, and a spokeswoman did not return a request for comment on Monday.

The senator’s unspecified health issues come after several hospitalizations in recent years, and as Senate Republicans are already navigating a narrow majority in the final months before the midterm elections. McConnell, 84, was the longest serving Senate leader in history before stepping aside from that role. He is serving out his final term, which ends in January.

While he was still Republican leader, McConnell was hospitalized with a concussion in March 2023 and missed several weeks of work after falling in a Washington hotel. After he returned, he twice froze up during news conferences that summer, staring vacantly ahead before colleagues and staff came to his assistance. A year later, he fell and sprained his wrist while walking out of a GOP luncheon.

McConnell had polio in his early childhood and he has long acknowledged some difficulty as an adult in walking and climbing stairs. He also tripped and fell in 2019 at his home in Kentucky and underwent surgery for a fractured shoulder.

McConnell was first elected to the Senate in 1984 and was the Republican leader from 2007 until last year, serving as both majority and minority leader during that period. He has remained active as a rank-and-file senator, showing up for work when the chamber is in session, often using a wheelchair to get around.