Democrats scoring gains in Senate, House
Story Highlights •NEW: Democrats pick up seven House seats so far, CNN projects •NEW: CNN projects Democrats pick up third seat in the Senate •Democrats hold key Maryland and New Jersey Senate seats, CNN projects •Democrats need net gain of 15 seats to take control of House, six to win Senate
(CNN) -- Democratic challengers have picked up three seats in the Senate and four in the House, as the trend in CNN's early projections favors the party that has been in the minority for most of the past 12 years.
Polls have closed in 44 states and the District of Columbia, and many of the races that will decide the balance of power in the House and Congress are still too close to call.
Democratic challenger Sheldon Whitehouse will win the Rhode Island Senate race, defeating Republican incumbent Lincoln Chafee, CNN projects. (Full Senate news)
Two-term Pennsylvania Sen. Rick Santorum, the chamber's third-ranking Republican, has conceded to Bob Casey Jr. And Democrat Sherrod Brown will defeat GOP Sen. Mike DeWine in Ohio, CNN projects.
Democrats need a net gain of 15 seats to take the House and a net gain of six seats to take the Senate. But even with the wind at their backs -- especially in the House -- one senior Democratic aide warned, "Don't underestimate our ability to blow it." (Watch the president, candidates and citizens cast votes -- 2:00Video)
On the House side, CNN projects two Democratic pickups in Indiana and one in both Kentucky and New Hampshire. But it wasn't a sweep. The GOP held on to Kentucky's 4th District, which had been targeted by Democrats. (Latest House news)
"We are now tonight on the brink of a great Democratic victory," said Rep. Nancy Pelosi, who would be in line to become speaker of the House if the Democrats pick up 11 more seats.
Democrats have retained two of their Senate seats that were considered competitive, with incumbent Bob Menendez winning in New Jersey and Ben Cardin taking Maryland, CNN projects.
Voting has ended in Georgia, where Republicans have targeted Democratic incumbents in two House districts redrawn by the GOP-controlled state Legislature to make them more Republican-friendly. With more voters than ever using electronic voting machines, scattered glitches reported across the country have prompted officials to extend voting hours in some areas. (Full story)
Early national exit polls also showed that voters had more than just local issues in mind, with 62 percent saying that national issues made the biggest difference with their votes and 33 percent citing local issues. (Watch how early exit polls show politics is more national than local this time -- 2:19Video)
"They used to say that all politics was local. Not this time," said CNN political analyst Bill Schneider.
The exit polls showed that 42 percent of voters called corruption an extremely important issue in their choices at the polls, followed by terrorism at 40 percent, the economy at 39 percent and the war in Iraq at 37 percent.
Nationally, 57 percent of voters said they disapproved of the war in Iraq, while only 41 percent approved. Those figures mirror President Bush's job approval among voters, with 58 percent saying they disapprove of the president's performance and only 41 percent approve.
Asked if they approved of how Congress is handling its job, 62 percent said they did not, while just 36 percent said they did.
The exit polls -- by a consortium of broadcast networks and The Associated Press -- were conducted on Tuesday morning and afternoon long before polls were to close in the West.
A quarter of voters surveyed so far said they made up their minds within the past week, and 1 in 10 said they decided just Tuesday.
Democrats were battling accusations they are soft on national security and the economy. Some say they also are hindered by an uncanny propensity to blow elections over the past 12 years. (Watch what to expect if Democrats win -- 2:02Video)
The entire House is up for election, and Republicans are trying to fend off their Democratic challengers and defy widespread expectations that the House is primed for a changing of the guard.
The GOP, which holds a 231-201 advantage in the House, is on the defense. Democrats are expected to hold the seats they have and, depending on the prognostication, take 20 to 36 seats from Republicans.
Recent polls asking Americans how they planned to vote indicate Republicans are trailing by double digits -- 53 percent to 41 percent, according to the polls' average -- but Republican officials said the gap was narrowing.
Polls also suggested the Republican grip on the Senate is safer. Thirty-three Senate seats are at stake, but only nine races are considered competitive, five held by Republicans in states Bush handily carried in 2004.
Democratic senator-turned-independent candidate Joe Lieberman will win the Connecticut Senate race, CNN projects. Both he and newly elected independent Bernie Sanders in Vermont have said they will caucus with the Democrats.
Among the other early winners in the Senate projected by CNN are Republican Trent Lott in Mississippi, Democrat Amy Klobuchar in Minnesota, former first lady Hillary Rodham Clinton in New York, and Democratic Sen. Debbie Stabenow in Michigan.