PPP's newest Iowa 2016 poll finds the same thing every 2016 poll ever conducted has found- a wide open race on the Republican side, and Hillary Clinton with a dominant lead among the Democrats.
For the Republicans Mike Huckabee leads with 20% to 15% for Ted Cruz, 12% for Jeb Bush, 10% for Rand Paul, 9% for Chris Christie, 8% for Paul Ryan, 6% for Scott Walker, 4% for Marco Rubio, and 3% for Rick Santorum. Huckabee led on our February poll as well. Huckabee leads based especially on his strength with conservatives, women, and seniors.
Other things of note:
-Chris Christie actually now has a negative favorability rating with Republicans in the state at 36/38. That's largely due to his issues with 'very conservative' voters, only 22% of whom see him favorably to 49% with a negative opinion. Christie leads the GOP field with moderates, but gets only 3% with the most conservative voters who constitute a plurality of the electorate.
-Huckabee is the only Republican to hit a 70% favorability rating in Iowa. The next highest after him is Sarah Palin at 68%, then Santorum at 62%, and Ryan and Paul at 60%. Despite remaining personally popular Santorum does not appear to be many people's first choice this time around- his surprise win in 2012 was largely the product of a weak field for conservative voters to choose from.
-Jeb Bush, after Christie, has the second highest unfavorability rating of any of the serious contenders. 48% see him favorably but 25% have an unfavorable opinion. We also found Donald Trump at a 30/40 spread but he doesn't fit in the 'serious' category.
-Beyond the big names included in every poll we also looked at some of the more dark horse potential Republican contenders. Ben Carson has 43% name recognition (37/6), Peter King is at 30% (11/19), Scott Brown has just 29% name recognition (12/17), and John Kasich is known to just 28% of voters (18/10).
On the Democratic side Hillary Clinton remains ever dominant with 59% supporting her for the nomination to 12% for Joe Biden, 11% for Elizabeth Warren, 3% each for Cory Booker and Andrew Cuomo, and everyone else at 2% or lower. Clinton has an 83/12 favorability rating, and polls at least 53% with liberals, moderates, men, women, seniors, and younger voters alike.
When it comes to the general election Hillary Clinton would lead all of the potential Republican candidates by similar margins to what Barack Obama won Iowa by in 2012. She leads Mike Huckabee and Rand Paul 46/42, Jeb Bush 44/39, Chris Christie 45/39, and Ted Cruz 47/40.
Full results here