John McCain Has Brain Cancer, Say Doctors

U.S. Senator John McCain (R-AZ) boards a Senate caravan bus from Capitol Hill to attend a North Korea briefing at the White House, in Washington, U.S., April 26, 2017. REUTERS/Yuri Gripas

Sen. John McCain has brain cancer, and a tumor was discovered, according to his doctors.

The 80-year-old Republican senator from Arizona was diagnosed with primary glioblastoma, a type of brain tumor, according to the Mayo Clinic, where he’s being treated.

Over the weekend, McCain underwent a surgical procedure to remove a blood clot. Then, doctors discovered the tumor.

Sen. John McCain underwent a procedure over the weekend to remove a blood clot. He's dealt with cancer scares in the past. Spencer Platt/Getty Images