This was notable from last night:
…underscoring the party’s deep rifts, a remarkable 57 percent of [Trump’s] opponents’ backers said they wouldn’t support him as their party’s nominee in November….
…two-thirds of Kasich supporters said they would not vote for Trump in November if he’s the party’s nominee, the most to date in primaries where the question has been asked. Forty-two percent of Cruz voters said the same.