Despite cancer diagnosis, McCain says, 'I'll be back soon'

Battling brain cancer, John McCain on Thursday vowed to return to the Senate, leveling fresh criticism at the Trump administration and aiming a good-natured dig at Republican and Democratic colleagues shaken by news of his diagnosis."I greatly appreciate the outpouring of support — unfortunately for my sparring partners in Congress, I'll be back soon, so stand-by!" McCain said in a tweet. Showing no signs of stepping back from political and national security battles, he issued a statement