Although the movement to limit congressional terms has been largely dormant for the past two decades, 15 states do limit how many terms their own legislators can serve.
No other democratic nation fills its top job quite the way the U.S. does, and only a handful are even similar.
The great majority of Americans who vote on Election Day will use one of two basic technologies: "fill-in-the-bubble" and other optical-scan ballots, or touch-screen computers and other direct recording electronic systems.
The firm that runs the presidential exit poll expects to interview about 100,000 voters across the country by the time the polls close on election night.
Though many Americans say they're concerned about possible election fraud, the U.S. electoral system generally ranks high in cross-national comparisons.
More than 4 million early, absentee and mail-in votes already have been cast, and if recent trends continue the number of Americans voting in such nontraditional ways could approach 50 million this year.
Much of U.S. job growth over the past 25 years has been in occupations that require higher levels of education, training and experience – a trend that seems likely to continue, based on our analysis of official government job-growth projections.
The rules, practices and norms around recycling vary considerably from place to place – contributing to dramatically different local recycling levels and rates at which different materials are recovered.
Big partisan shifts in the House of Representatives happen, but not often. In only three of the past 12 election cycles has one party posted a net gain of more than 30 seats, and on average 93% of House members who seek re-election are voted back into office.
In 2012, only 26 House districts out of 435 chose one party's presidential nominee and the other party's candidate for the House.