Hillary Clinton remains the woman to beat in the speculative presidential primary and general election fields, according to a new poll.
The former secretary of state crushes the Democratic field, leading with 63 percent support, compared to Vice President Joe Biden's 13 percent, New York Gov. Andrew Cuomo's 6 percent and Maryland Gov. Martin O'Malley's 1 percent.
Eighteen percent said they were undecided, according to the McClatchy-Marist Poll released Thursday.
The Democrats are evenly split on whether or not they want the 2016 nominee to follow up on President Barack Obama's policies or bring a new vision.
Similar polls have also showed Clinton leading the way among Democrats.
The Republican field remains wide open, the poll shows.
New Jersey Gov. Chris Christie leads the pack with 15 percent, followed by Rep. Paul Ryan of Wisconsin with 13 percent, Sen. Marco Rubio of Florida with 12 percent, former Florida Gov. Jeb Bush with 10 percent, Sen. Rand Paul of Kentucky with 9 percent and Sen. Ted Cruz of Texas with 7 percent. Five more potential GOP nominees garner less than 5 percent of the vote: Texas Gov. Rick Perry, former Sen. Rick Santorum of Pennsylvania, Wisconsin Gov. Scott Walker, Louisiana Gov. Bobby Jindal and New Mexico Gov. Susana Martinez. Twenty-five percent of Republicans said they were undecided.
"In a crowded field, New Jersey Gov. Chris Christie is at the top of the list," said Lee Miringoff, director of the Marist College Institute for Public Opinion. "None of the potential Republican candidates who appeal to the more activist base of the party have broken free of the pack."
The poll also showed 64 percent of Republicans think it is more important to have a candidate who stands on conservative principle versus 31 percent who said it was better to nominate a candidate who can beat their Democratic opponent.
Clinton also leads all her potential Republican opponents in a general election match-up, the survey found. Against Christie, Clinton led 47 percent to 41 percent; against Bush, she led 48 percent to 40 percent, and against Rubio, Paul and Ryan each she garnered at least 50 percent of the vote in a one-on-one matchup, with all three politicians failing to top 40 percent in the head-to-heads.
The poll surveyed 1,204 adults from July 15-18 and the overall poll has a margin of error of plus or minus 3.1 percent.
Corrected on : Corrected on 7/25/2013: A previous version of this article misspelled the name of New Mexico Gov. Susana Martinez.