Senate Armed Services Chairman John McCain is hospitalized in "stable condition" in Phoenix for treatment of intestinal infection, his office announced Monday.
On Sunday, his office said, McCain was admitted to the Mayo Clinic in Phoenix and "underwent surgery to treat an intestinal infection related to diverticulitis."
The Arizona Republican was diagnosed with brain cancer last year, and has remained at home in Arizona since December.
"Over the last few months, Senator McCain has been participating in physical therapy at his home in Cornville, Arizona, as he recovers from the side effects of cancer treatment," his office said. "He has remained engaged on his work as chairman of the Senate Armed Services Committee and has enjoyed frequent visits from his family, friends, staff and Senate colleagues."
The Armed Services Committee, which McCain has led since 2015, plans to mark up its annual defense policy bill during the week of May 7, though it’s unclear if McCain will return to lead the panel then. McCain's office has not announced any plans for him to return.
In McCain's absence, the second-most senior Armed Services Republican, Jim Inhofe of Oklahoma, has chaired the panel's hearings.