on abc s this week, he was pressed to explain his attack on the decorated arizona republican. what could john mccain have done not to be captured?? well, i do say this. people that fought hard and weren t captured and went through a lot, they get no credit. nobody talks about them. they re like forgotten. reporter: mccain, a former navy fighter pilot, was shot down in a bombing mission over vietnam, imprisoned and tortured over nearly 5 1/2 years. trump, who got five deferments during vietnam, never served in the military. he insulted every veteran, certainly every veteran who was a p.o.w. reporter: mccain hasn t commented, but nearly every republican presidential candidate swiftly condemned trump. some, including his hometown newspaper, now wondering whether he sunk his own campaign. i m certainly not pulling out. i m leading in many states. you still think this will help you in the polls? i believe that i will do far more for veterans than john mccain has done. repo