The GOP retained seats in Minnesota, New York, Colorado, Iowa and Wisconsin that Democrats sought to grab, and Republicans prepared to build on their current six-year run of House control.
Democrats grabbed a Republican-held seat in IL, but as Republicans defended a slim 54-46 majority in an unpredictable election year, key races in Missouri, New Hampshire, Pennsylvania and Nevada remained too close to call. Kelly Ayotte are in a race that is too close to call. A race in Louisiana is headed for a runoff next month, where the Republican is favored.
Republicans seemed on track to secure two more years of House control in Tuesday's elections but with erosion of their historic majority, leaving hard-line conservatives with added clout to vex party leaders.
Democrats also grabbed a Republican-held seat in IL, but the outcome in Wisconsin was a surprise as both parties had expected it to flip for the Democrats. Republican Rob Portman of OH also cruised to re-election in a race that was once expected to be close.
Control of the Senate will be key to the early successes of a Trump or Clinton administration. In Indiana, Republican Rep. Todd Young won with 52 percent of the vote against former Democratic senator Evan Bayh, despite polls showing Bayh to be the favorite.
Though Duckworth finished off her opponent as expected, Democrats failed to win a seat in IN they had eyed as a prime pickup opportunity. Two days before the election however, FBI Director James Comey said after a review, there was nothing to change their July recommendation of no charges for Clinton. In tiny New Hampshire, where there are just 919,000 registered voters, super-PACs spent $90.6 million on the Senate race.
That was well below the 30 seats Democrats needed to capture House control.
Democrats kept the edge with incumbent Sens.
As of 3 a.m. ET, Republicans held 51 seats to 47 for the Democrats. The only one in Democratic hands presently is Nevada, where Senate Minority Leader Harry Reid is retiring.
Indian equity markets stumble on domestic, global cues
But upon the recovery, four stocks were in the green, three of them in the pharma space - Dr. The Nifty50 of the National Stock Exchange is down 263.05 points or 3.1% at 8280.50.
One of the big questions is how congressional candidates will fare with two historically unpopular presidential candidates at the top of the tickets. Pat Toomey won a narrow victory for his second term over Democratic challenger Katie McGinty. Democrats would have to win all of those and hang onto Democratic-held Nevada to reach a 50-50 outcome, and could then only claim majority status if Democrat Hillary Clinton wins the White House. Senator Toomey retaining his seat is a part of unpredicted Trump support in Pennsylvania and elsewhere.
GOP strategist Ford O'Connell said in a tight finish, the unsung hero of the night is Senate Majority Leader Mitch McConnell, who orchestrated the firewall even as his candidates struggled to campaign in the shadow of presidential nominee Donald Trump.
Former Democratic Assemblyman Raul Bocanegra was leading incumbent Democrat Patty Lopez, D-San Fernando, whom Bocanegra defeated in an upset two years ago.
The Democrats have so far gained just one seat, with Tammy Duckworth, a double amputee Iraq war veteran, taking Mark Kirk's place in IL. Crist defeated Republican opponent David Jolly.
Tammy Duckworth will defeat Republican Sen.
Johnson's victory came in a rematch of the 2010 race in which Johnson ended Feingold's 18-year run in the Senate.
Democrats Patrick Leahy in Vermont, Chris Van Hollen in Maryland, Richard Blumenthal in CT and Chuck Schumer in NY were declared winners.
In West Virginia, businessman Jim Justice defeated Republican Bill Cole, the state Senate president, to continue a 16-year stint of Democratic governors in a state that has otherwise been tilting toward Republicans.