Republican presidential contenders Florida Senator Marco Rubio and former Texas Governor Rick Perry said Trump, with his latest bombast, had demonstrated he was not fit to be president. At an Iowa candidate forum on Saturday, Trump dismissed Republican Senator John McCain’s reputation as a war hero, saying the navy pilot was merely taken captive after being shot down in Vietnam and “I like people who weren’t captured.” “I will say what I want to say,” Trump said on Sunday, claiming a strong record of supporting veterans and accusing McCain of failing them in Washington. “I will do far more for...