PPP's new national poll finds that Donald Trump remains the clear front runner- and the GOP base would find someone like Paul Ryan or Mitt Romney being nominated at a contested convention to be unacceptable.
Trump's polling at 42% to 32% for Ted Cruz and 22% for John Kasich. Kasich's continued presence in the race really is providing a boost to Trump- in a head to head match up he would lead Cruz only 46-44, as Kasich voters would move to Cruz over Trump by a 51-23 spread. In a head to head with Kasich there would be little effect on Trump's overall advantage, with Trump leading 52/40 in such a scenario.
Trump continues to have the most committed voters, with 80% of his supporters saying they'll definitely vote for him compared to 66% for Cruz and 49% for Kasich. Cruz leads Trump 52/39 with 'very conservative' voters but Trump continues to lead overall based on his strength with 'somewhat conservative' voters among whom he gets 47% to 26% for Kasich and 24% for Cruz. Kasich leads Trump 40/37 with moderates. Trump leads with both men and women, and has at least a modest advantages within every age group.
58% of GOP primary voters say they'd be comfortable with Trump as their party's nominee to 34% who say they would not be. Trump actually has stronger numbers on that metric than the other candidates- 53% say they would be comfortable with Cruz to 35% who wouldn't, and 49% say they'd be comfortable with Kasich to 36% who wouldn't. Turning to Ryan or Romney would really cause division within the party. Although Ryan is decently popular, with a 50/35 approval as Speaker of the House, only 42% of primary voters would be comfortable with him as their candidate to 45% who would not. Romney is completely unacceptable- only 28% say they'd be comfortable with him as nominee to 62% who would not and he's just generally unpopular- that 28/62 spread is also his favorability rating. We also asked respondents' feelings about the Republican establishment generally, and only 28% of voters have a positive opinion of it to 55% with a negative one. It's not surprising that those numbers track closely with feelings about Romney.