Hillary Clinton's lead over possible candidates for the 2016 Democratic nomination has "shrunk significantly," a new poll found.
61% of likely Democratic voters in December say they would vote for Clinton, according to a poll conducted by ABC News and the Washington Post, down from her lead of 63% in November, and 73% in January.
Vice President Joe Biden is in second place with 14%, the poll said, and Mass. Senator Elizabeth Warren is in third with 13%, though Warren has emphasized that she is not seeking a nomination.
For the Republican nomination, 2012 GOP nominee Mitt Romney is leading with 19%, with Florida Governor Jeb Bush in second at 14%, according to a McClatchy-Marist poll last week.