Arizona Senator John McCain has been diagnosed with brain cancer, CNN's Dr. Sanjay Gupta reported on Wednesday.
McCain returned to Arizona last week after becoming ill, which prompted Majority Leader Mitch McConnell to delay a potential vote on health care.
According to Gupta, McCain had surgery to address the tumor, and has since returned to his home. Gupta said McCain will need a combination of chemotherapy and radiation to continue recovering, Gupta reported.
"On Friday, July 14, Sen. John McCain underwent a procedure to remove a blood clot from above his left eye at Mayo Clinic Hospital in Phoenix," a statement from the Mayo Clinic read. "Subsequent tissue pathology revealed that a primary brain tumor known as a glioblastoma was associated with the blood clot."
The Mayo Clinic confirmed Gupta's reporting on McCain's treatment options.
"Treatment options may include a combination of chemotherapy and radiation," the statement added. "The Senator's doctors say he is recovering from his surgery 'amazingly well' and his underlying health is excellent."
McCain's office has confirmed his condition in a statement Wednesday evening.
"Senator McCain appreciates the outpouring of support he has received over the last few days," a statement read. "He is in good spirits as he continues to recover at home with his family in Arizona."
McCain was first elected to the Senate in 1986. He then had a pair of unsuccessful presidential campaigns in 2000 and 2008.