Rep. Paul RyanPaul Davis RyanDischarge petition efforts intensify as leadership seeks unity Republicans fear retribution for joining immigration revolt Immigration petition hits 204 as new Republican signs on MORE (R-Wis.) and former secretary of State Hillary ClintonHillary Diane Rodham ClintonMueller moves ahead with Papadopoulos sentencing What's wrong with the Democratic Party? Just look at California BBC: Ukraine paid Cohen 0K to set up talks with Trump MORE (D) are the early favorites of Iowa voters among possible 2016 presidential candidates, according to a new Des Moines Register Iowa Poll.

Seventy-three percent of Republican Iowa adults viewed the Ryan very or mostly favorably, while 10 percent viewed the 2012 GOP vice presidential nominee very or mostly unfavorably.

Ryan last week reached a budget agreement with Sen. Patty Murray (D-Wash.) that, despite conservative criticism, passed the House in a 332-94 vote.

Former Gov. Mike Huckabee (Ark.) placed second among possible Republican candidates in the Iowa Poll.

The winner of the 2008 Iowa caucuses is conducting polling and gauging support for a possible 2016 presidential bid.

“I’m keeping the door open,” he told The New York Times last week. “I think right now the focus needs to be on 2014, but I’m mindful of the fact that there’s a real opportunity for me.”

Huckabee is followed by former Sen. Rick Santorum (Pa.), Gov. Rick PerryJames (Rick) Richard PerryFive races to watch in the Texas runoffs Five Republican run-offs to watch in Texas Trump signs order to boost efficiency in federal agencies MORE (Texas), former Gov. Jeb Bush (Fla.), Gov. Chris Christie (N.J.), Sen. Rand PaulRandal (Rand) Howard PaulOvernight Energy: Reporters barred from Day 2 of EPA summit | Dems blame Trump for gas price increases | Massachusetts to get new offshore wind farm Senate Democrats look for traction on gas prices GOP Senate primary heats up in Montana MORE (Ky.), Gov. Scott Walker (Wis.), Sen. Marco RubioMarco Antonio RubioAdministration works to assuage critics over ZTE deal Hillicon Valley: Judge rules Trump can't block Twitter users | ISIS content finds a home on Google Plus | Rubio rips ZTE demands as 'terrible deal' | Bill would protect kids' data Overnight Finance: Trump eyes 'different structure' for China trade deal | Trump mulls auto import tariffs | Banks get green light to offer short-term loans MORE (Fla) and Sen. Ted CruzRafael (Ted) Edward CruzSenators introduce bill to overhaul sexual harassment policy Greatest risk to the Republican majority? Rising interest rates GOP Senate primary heats up in Montana MORE (Texas).

Among Iowa Democrats, an “eye-popping” 89 percent of Democrats rated Clinton as very or mostly favorable, compared with 7 percent who viewed her very or mostly unfavorably.

“Clinton’s score is eye-popping and shows she is viewed more favorably than any Democrat or Republican by a big margin,” said Jeff Link, an Iowa Democratic operative, told the Register.

Vice President Joe BidenJoseph (Joe) Robinette BidenWhat's wrong with the Democratic Party? Just look at California Progressive rise is good news for Sanders, Warren Biden says 'enough is enough' after Santa Fe school shooting MORE placed second in the Iowa Poll, followed by and Gov. Martin O’Malley (Md.) and former Gov. Brian Schweitzer (Mont.).