Poll: Hillary 38, Trump 36, third party 16; Hillary 37, Cruz 32, third party 19

When looking at this question by candidate support, only about half of Cruz supporters and half of Trump supporters said they would vote for the other GOP candidate in a general election should the Democratic candidate be Hillary Clinton.

In a theoretical November contest wherein Clinton and Trump were the candidates, 56 percent of Cruz supporters would vote for Trump and a quarter would vote for a third party candidate.