President Barack Obama is soon going to be former president Barack Obama.

While he still has about 600 more days in office, candidates for America's next Commander-in-Chief aren't waiting around for others to build momentum. Running for political office is (unfortunately) a game of time and money, and even though we're a year and a half out from the election, one politician has already announced his candidacy. Expect a bunch more to come out of the woodwork in the coming months to gun for the highest seat in the nation when it's up for grabs in November 2016.

Already, though, things are looking a little lopsided—that's because Democrats have taken a backseat over the last few years when it comes to producing household names, and many of their candidates are the same people who've been tossed around as candidates over the last decade. Republicans have far more candidates who've been preparing for a shot at the presidency, since as far back as President Obama's first term. (While there's a good dozen Republican candidates who may campaign, we featured the most significant ones who might actually have a shot at the ticket). One notable person who won't be running is Mitt Romney, who lost the 2012 election to President Obama. 

So, who are the leading people to become a nominee for the Democratic and Republican tickets next year? The landscape is starting to take shape, and one of these people is likely to become the next POTUS.