Why is Super Tuesday so... super?
It's the day when the most delegates can be won for the challenging party's national convention, where the official presidential candidate is selected.
What are the numbers for Super Tuesday 2012?
Tonight there are 10 primaries in states from Alaska to Virginia, with 437 delegates up for grabs, and four candidates vying for votes. (For those of you living under a rock, the contenders are Mitt Romney, Rick Santorum, Newt Gingrich, and Ron Paul.)