DISPLAY (NO REPORTER NARRATION)<br/> <br />While some likely contenders have been positioning themselves for a White House bid for months, others are still evaluating their chances and many could wait until early 2015 to make a decision.<br/> <br />Here are a few of the possible White House contenders in 2016:<br/> <br />THE DEMOCRATS<br/> <br />HILLARY CLINTON<br/> <br />The former secretary of state and first lady, who lost an acrimonious Democratic presidential nominating battle to Barack Obama in 2008, is the consensus frontrunner and holds a large lead in preliminary polls over all potential Democratic challengers. Clinton, 67, has not said whether she plans to run, but supporters have built a national campaign structure to await her candidacy, including a pair of high-profile super PACs. Since leaving the State Department in 2013, the wife of former president Bill Clinton has been giving a series of paid speeches and campaigning for Democrats.<br/> <br />JOE BIDEN<br/> <br />The vice president, 71, has served alon
