With fewer than 400 days until the 2016 presidential election,
here's a look at who has the best chance of taking President Obama's place. (Video via The White House)
No. 5: Jeb Bush (R), former Florida governor (Video via C-SPAN)
Bush's poll numbers have slipped after two mediocre performances in the GOP debates.
His 17 percent national average in July has fallen nearly 8 points.
But his fundraising skills could pull him through. (Video via Fox News)
Bush's campaign raised more than $114 million in the most recent quarter.
No. 4: Marco Rubio (R), senator from Florida (Video via Marco Rubio)
Rubio is quickly becoming a Republican favorite after solid performances in both GOP debates.
And he and Carly Fiorina are the only candidates so far to successfully spar with Donald Trump.
Rubio has raised more than $43 million in the latest quarter, so he has some staying power.
No. 3: Ben Carson (R), retired neurosurgeon (Video via The Washington Post)
Carson has continued to make his way up the ladder.
According to a recent NBC / Wall Street Journal poll, his support has doubled since July.
And his fundraising has grown, too. He raised $8.3 million in the most recent quarter. (Video via Liberty University)
No. 2: Donald Trump (R), businessman (Video via Donald Trump)
Trump took the political world by storm early in the race and showed surprising staying power.
But his numbers have started to level off, and many aren't sure he can keep gaining steam. (Video via CBS / "The Late Show")
No. 1: Hillary Clinton (D), former secretary of state (Video via MSNBC)
Clinton has proved solid in both polling and fundraising,
despite the controversy over her use of a private email server while she was secretary of state. (Video via Hillary Clinton)
Her popularity has plummeted recently, but she's given her candidacy new life by making late-night appearances
and taking stands on issues she once avoided.
This video includes images from Getty Images and music from Birocratic / CC BY ND 3.0.
