Last night, veteran Democratic pollster Peter Hart conducted a focus group featuring 12 undecided, ticket-splitting voters in Colorado, which illustrated the tough challenge President Obama faces in winning a second term. He's lost significant ground among these swing voters: Ten of the participants voted for Obama in 2008; only three of them said they leaned towards re-electing him in 2012. In an initial survey taking leaners into account, Mitt Romney led Obama 5-3, with four completely undecided.
33 out of 100 seats are up for election. 51 are needed for a majority.
|Seats gained or lost||+2||-2|
* Includes two independent senators expected to caucus with the Democrats: Angus King (Maine) and Sen. Bernie Sanders (Vt.).
All 435 seats are up for election. 218 are needed for a majority.