One-Third of Trump Supporters Say Won't Back Another Republican Candidate

In a poll that shows the trouble that could lie ahead for the GOP leadership, 34 percent of Republicans who support Donald Trump’s candidacy say they won’t vote for another party candidate if he is denied the nomination at a contested convention.

Although the Reuters/Ipsos poll showed that 66 percent of Trump supporters would vote for the Republican nominee regardless. The others all say they will do something else, with 11 percent saying they will support a third party candidate, six percent won’t vote and four percent will vote Democratic. "If it’s a close election, this is devastating news" for the Republicans, said Donald Green, an expert on election turnout at Columbia University....
http://www.slate.com/blogs/the_slatest/2016/04/09/one_third_of_trump_supporters_ready_to_abandon_republican_party_on_election.html