presidential hopeful has mocked fellow republican senator john mcdane. cane. >> he is not a war hero. he's a war hero because he was captured. i like people that weren't captured, i hate to tell you. he's a war hero because he was captured. >> reporter: trump was attacking mccain because he lost the 2008 election to current president barack obama. many rushed to mac cane's side, going on twitter to defend the former prisoner of war. mr donald trump. a real estate tycoon and tv celebrity. trump has been making head lines, with a brand of comments. few are spared. his opponents. >> hillary clinton was the worst secretary of state in the history of our country. >> reporter: on mexican migrants. >> they are taking our jobs, they are taking our manufacturing, taking our money. they are taking everything they are killing us on the border. it's the speech that excites and divides voters. this time is no different >>> a library of some of the worlds repairers sounds is n danger of being silenced. the british library, a voice of distinct calls, the sounds of worl