Ted Cruz And Donald Trump Supporters Probably Won't Defect To A Third-Party Candidate

More than a quarter of Donald Trump's supporters would rather vote for a third-party candidate in November's general election than cast a vote for Sen. Ted Cruz (R-Texas) -- and a similar share of Cruz's supporters feel the same way about Trump.

That's according to a new NBC News/Survey Monkey poll that appears to offer evidence of a deep schism between supporters of the two leading Republican presidential candidates. But things may not be as simple as that.