The Huffington Post

The demographics of her support provide a sense of what could be a key constituency for a Clinton campaign: women, especially those who are younger or middle-aged. Two-thirds of women, including 75 percent of those under age 50, say they would like to see her run. Among men, her candidacy is supported by a narrower 49 percent.

Election history includes a long list of candidates considered unstoppable until they actually entered the race, and not all of the Americans giving Clinton an early thumbs up are likely to vote for her. Her current backers include not only majorities of Democrats and independents, but nearly a quarter of Republicans.

Hillary Clinton Hits Record Favorability, Poll Shows Wide Support For 2016 Candidacy