New Public Policy 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 eight points in a hypothetical head to head. 

Gov. Chris Christie ties for third in the Republican Primary poll, but leads Republicans in a general election matchup with Clinton. The poll shows Christie losing to Clinton by four points, a better showing than any of his GOP colleagues.

For the third month in a row in PPP's 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.

The poll shows that 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.  

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. 

PPP surveyed 800 voters nationally from January 31st to February 3rd. The margin of error for the survey is +/-3.5%. The pollsters oversampled 416 Democratic and 508 Republican primary voters with margins of error of +/-4.8% and +/-4.4% respectively. In Iowa between February 1st and 3rd they interviewed 313 Democratic and 326 Republican primary voters with margins of error of +/-5.5% and +/-5.4% respectively.