NPR News

With all the really big numbers flying around this campaign season, here's one more: $165,062,250.

That's how much Karl Rove's Crossroads GPS has spent attacking Democrats and helping Republicans this election. Perhaps this number doesn't seem so special, compared with the $1 billion spent by President Obama's campaign and at least $900 million by Gov. Romney's team.

There is one critical difference, though.

Melissa Block talks with senior Washington editor Ron Elving about the Senate races to watch on Tuesday.

The two presidential candidates made their final campaign stops ahead of Tuesday's election. Melissa Block talks with Ari Shapiro, who traveled with Mitt Romney, and Scott Horsley, who traveled with President Obama, about their final pitch to voters.

Over the past few weeks, we've been checking in regularly with pollster Andrew Kohut, president of Pew Research Center. On the eve of Election Day, he talks to Robert Siegel about the difficulties of polling during this campaign and the center's final poll, in which President Obama regained the lead.

Almost all Americans will use either electronic voting equipment or have their ballots counted by an optical scan machine in Tuesday's election. While there are still concerns about reliability and security of voting equipment, many experts say things have improved greatly since 2000.

The battle for control of the U.S. Senate has been expensive; no place more so than Ohio. Outside groups have spent more tens of millions dollars on the seat.

A day before the election, some storm-stricken New Yorkers were trying to figure out where to vote. Meanwhile, the New York City Board of Elections is under pressure to make things run smoothly.

The fighting in Syria was both nasty and widespread on Monday. Here's a summary of some of the worst fighting:

-- Two deadly car bombings took place, one in a residential neighborhood in Damascus that killed 11 people, according to Syria's state-run SANA news agency. The other one, near the central city of Hama, generated wildly conflicting claims. An activist group, the Syrian Observatory for Human Rights, said the suicide attack killed 50 government soldiers and allied gunmen. But the government put the death toll at two civilians.

Early voting ended in Florida on Saturday. But on Sunday, some county elections officials opened their offices to allow people to vote using absentee ballots.

In Miami-Dade County, elections officials opened the office for over-the-counter absentee voting, but then inexplicably shut down. A couple of hundred waiting voters began chanting and pounding on the doors. An hour later, the office reopened.