Democrats pick up: Mark Warner (Virginia); Jeanne Shaheen (New Hampshire); Kay Hagan (North Carolina); Tom Udall (New Mexico); Mark Udall (Colorado)

Republicans hold: Kentucky (McConnell); Mississippi (Wicker)

Still undecided:

Georgia: Chambliss (R) 59.8%, Martin (D) 46.8% (99% of precincts reporting). More.

Alaska: Stevens (R) 48.2%, Begich (D) 46.7% (99% of precincts reporting). More.

Oregon: Smith (R) 47.9%, Merkley (D) 46.5% (75% of precincts reporting). More.