Sen John McCain

Sen. John McCain has been hospitalized since Sunday dealing with diverticulitis, an intestinal issue. Republic reporter Craig Harris reports from Mayo Clinic Hospital in Phoenix. Michael Chow/azcentral.com

Sen. John McCain, 80, has a brain tumor, the Mayo Clinic and the Arizona Republican's office announced Wednesday night.

I have not seen anything like it, and it’s very disturbing

Ivanka Trump said the presidential campaign of her father, Donald Trump, is a “forward-looking moment.”