nator john mccain is live on "the view." opening up about the biggest battle of his life, a giant of the senator is battling brain cancer. going maif risk against president trump and how he feels about his daughter joining this crew at "the view." >> i was in the hospital with him and said what do you think of this? he said are you kidding? ♪ >> announcer: here come hot topics with whoopi, sara haines, joy behar, sunny hostin and meghan mccain. now les get things started.