GOP has nominated an 'outsider' for president before

Aired: 6/19/2016 | 0:04:22 | Clip
If New York businessman Donald Trump, having never held office, secures the Republican nomination for presidency at the national convention in Cleveland next month, he won’t be the first political “outsider” to lead a major party. Special correspondent Jeff Greenfield reports on the history of U.S. presidential campaigns.