Polls show there's a cost to Trump alienating Haley voters

When former U.N. Ambassador Nikki Haley ended her presidential bid in early March, Donald Trump and his allies emphatically told her supporters and "those" Romney-esque Republicans to take a hike. Those supporters listened, as Pennsylvania proved yet again this week, when more than 16% of Republican voters in the state's closed primary cast a ballot for Haley and against Trump.

The Washington Post's Aaron Blake assembled a list of states with Republican-only primaries so far and highlighted the percentage of their GOP voters casting a ballot against Trump. Idaho is on the low end at 15%, while Utah is at the high end, with 44% of Republicans rejecting Trump.