One of the defining elements of the 2012 presidential campaign is money. Not that the candidates themselves have raised all that much; except for President Obama, they haven't. But two dozen wealthy Americans have put in at least $1 million each.
Mostly, they're a mix of Wall Street financiers and entrepreneurs. One of the biggest donors is Sheldon Adelson, a casino magnate who is worth about $25 billion.
Redistricting is forcing a handful of congressional incumbents of the same party to run against each other in primaries. On March 6, Rep. Marcy Kaptur defeated fellow liberal Democrat Rep. Dennis Kucinich in Ohio.
And next Tuesday, two conservative Republicans square off in Illinois.
The scene is the newly drawn 16th Congressional District, which covers mostly rural territory in the northern part of the state, curving around the suburbs and exurbs of Chicago, from the Wisconsin border north of Rockford to the Indiana border east of Kankakee.
"We did it again," declared Rick Santorum during his victory speech in Lafayette, La.
Indeed, the former Pennsylvania senator swept the Republican presidential primaries in Alabama and Mississippi and once again threw Mitt Romney, who has from the very beginning been the presumptive nominee, on the defensive.
Of course, there are two other contests going this evening: Hawaii and American Samoa are holding caucuses, and if Romney takes both of those, he may very well end the night with the most delegates.
As part of a new campaign, dozens of citizen groups around the country are searching voter registration lists, looking for problems.
They're also training poll watchers to monitor this fall's elections.
Leaders of the effort — spawned by the Tea Party movement — say they want to make sure that elections are free from voter fraud. But critics say it's part of a campaign to suppress the votes of minorities, students and others who tend to vote Democratic.
For many following the Republican presidential contest, the big question is who's winning.
That's not easily answered if you go only by who has won each state's primary or caucus. But if you measure who's won the most pledged convention delegates, former Massachusetts Gov. Mitt Romney is clearly in the lead.
So much so, in fact, that Romney's campaign insists there's no way his rivals can catch up or keep him from getting the 1,144 delegates needed for securing the nomination in Tampa this summer during the Republican National Convention.
There were a lot of good stories from the 2008 presidential election, including Hillary Clinton's serious run for the Democratic nomination, not to mention the election of the first African-American president. The whole story was covered in the bestselling — and controversial — book by John Heilemann and Mark Halperin, Game Change.