Duverger’s law is a political theory that says democracies with single-member legislative districts and winner-take-all voting tend to favor a two-party system.
As the GOP becomes whiter, older, and more religious, Democrats become more diverse, younger, and less religious. The next president faces a daunting challenge bridging that gap.
Structural factors rooted in America's partisan divide help make the Democratic and GOP candidates the least-liked in modern polling.
The Democratic presidential candidate repeatedly seems to reveal as little as possible to the public. Is she too lawyerly for her own good?
Past perceived gaffes, such as Romney's '47 percent' comment in 2012, have drawn far more attention from the media than from voters, who may make up their minds about candidates in other ways.
This week again showed Donald Trump's ability to make assertions that would sink a more-traditional candidate, yet thrive. But that's the point. He's something wholly new in US politics.
Part of that is the Trump factor. But part of it is the fact that an uncharacteristically high number of voters haven't made up their minds.
Donald Trump hopes that his core of white, working-class support will help him break the Democratic stranglehold on union voters. But data suggest the story is more complicated than that.
If Trump is to have a shot at winning, the Republican presidential nominee has to win over college-educated whites. Only about a third of them support his immigration policies.
A Federal district judge has ordered the State Department to scrub 15,000 newly surfaced emails of classified or personal material on an accelerated schedule. They'll likely be released just prior to Election Day.
Donors will always push for something, creating controversy – no matter how often Clinton says she won’t give them special treatment.
The resignation of Donald Trump's chief strategist is no surprise. But the reshuffling says something about the strengths and weaknesses of how Mr. Trump manages.
Trump spoke from a script, a copy of which was made publicly available, with each fact footnoted. But critics still accused him of being dishonest and incompetent.
Bernie supporters are angered by what they see as a lack of democracy in the primary process. But the nominating process today is far more open than it used to be – may too open, say some.