New PPP polls both nationally and in Iowa find Marco Rubio and Hillary Clinton leading the way for their party's respective 2016 nominations, with Clinton leading Rubio by 8 points in a hypothetical head to head.
For the third month in a row in our national 2016 GOP tracking Rubio leads the way. He's at 22% to 15% for Paul Ryan, 13% each for Jeb Bush and Chris Christie, 11% for Mike Huckabee, 10% for Rand Paul, 4% for Bobby Jindal, 3% for Rick Perry, and 1% for Susana Martinez. Rubio continues to lead based on his appeal to the furthest right segment of the Republican Party- he's at 28% with 'very conservative' voters to 15% for Huckabee and 14% for Ryan.
Rubio's tied for the lead in Iowa as well. It's a closely contested picture there with he and Huckabee both at 16%, followed by Paul at 15%, Bush at 14%, Christie at 12%, Ryan at 10%, Martinez at 4%, and Jindal and Perry at 3%. Rubio leads with conservatives there as well but polls so far behind Huckabee with moderates that it's just a tie overall. One other interesting finding in Iowa is that Chris Christie has only a 36/33 favorability rating with Republicans in the state, including 36/38 with 'very conservative' ones.
On the Democratic side Hillary Clinton continues to dominate both nationally and in Iowa. Nationally she's at 58% to 19% for Joe Biden, 8% for Elizabeth Warren, and 3% for Andrew Cuomo. She's even stronger in Iowa at 68% to 21% for Biden with no one else over 2%. Her favorability rating with Democrats there is 90/5.
Clinton leads in head to head match ups nationally with all of the leading Republicans. She's up 8 on Rubio 49/41, 6 on Bush and Ryan at 49/43 and 50/44 respectively, and 46/42 on Christie. Biden does an average of 3 points worse than Clinton against the Republicans- he's up 48/43 on Rubio, 49/45 on Ryan, 48/45 on Bush, and ties Christie at 44.
Obviously it's very early but we'll be doing this national 2016 polling on a monthly basis so that we have a good measure of how preferences shift over time.
Full results here