Louisiana Senate race headed to runoff election in December

Election Day 2014 generic -- KEEP MCCONNELL IN FRONT PLEASE
See Gallery
Louisiana Senate race headed to runoff election in December
LOUISVILLE, KY - NOVEMBER 4: A voter gestures as Senate Minority Leader U.S. Sen. Mitch McConnell (R-KY) votes in the midterm elections at Bellarmine University November 4, 2014 in Louisville, Kentucky. McConnell is running in a tight race against opponent Kentucky Secretary of State Alison Lundergan Grimes. (Photo by Aaron P. Bernstein/Getty Images)
FORT MYERS, FL - NOVEMEBER 4: Texas Gov. Rick Perry stops by a Republican call center to rally campaign workers November 4, 2014 in Fort Myers, Florida. Florida Gov. Rick Scott is running in a tight race against opponent and former Florida Gov. Charlie Crist the Democratic challenger. (Photo by Erik Kellar/Getty Images)
I voted . LLAP http://t.co/DZBvf2wLrk
...And this is the last time we're expecting to see Wendy Davis until the polls close. http://t.co/nhkIJBFUp3
MILWAUKEE, WI - NOVEMBER 4: Wisconsin Gov. Scott Walker talks to the media after he casts his ballot on election day at Jefferson Elementary School, November 4, 2014 in Milwaukee, Wisconsin. Walker is running in a tight race against opponent Democratic candidate for Governor Mary Burke. (Photo by Darren Hauck/Getty Images)
Former Florida Governor and now Democratic gubernatorial candidate Charlie Crist walks out of th Total Image Hair Salon after making an election day phone bank visit to thank volunteers on November 4, 2014 in Tampa, Florida. Crist is facing off against incumbent Republican Governor Rick Scott in today's election. (Photo by Joe Raedle/Getty Images)
U.S. Senator Jeanne Shaheen (D-NH) takes a family photo with husband Bill, and extended family outside Madbury Town Hall after casting her vote November 4, 2014 in Madbury, New Hampshire. Incumbent Shaheen is in a tight race with former Massachusetts U.S. Senator Scott Brown. (Photo by Darren McCollester/Getty Images)
US Senator Mark Warner(R),D-VA, running for re-election to the Senate, speaks to reporters after casting his vote November 4, 2014 the Lyles-Crouch Traditional Academy in Alexandria, Virginia, shortly after the polls opened for the midterm US elections. Warner is running against Republican challenger Ed Gillespie. AFP Photo/Paul J. Richards (Photo credit should read PAUL J. RICHARDS/AFP/Getty Images)
Are you voting today? I was the youngest person at my polling place by at least 30 years. If I'm reporting... http://t.co/fg2ZVLQgDy
Voter Adam Hensley casts his ballot at a polling station at Fugate's Bowling Alley in Hazard, Kentucky, U.S. on Tuesday, on Nov. 4, 2014. Democrat Alison Lundergan Grimes is trailing her opponent Republican Mitch McConnell, 41 percent to 50 percent in the Kentucky Senate race, according to an NBC/Marist poll. Photographer: Luke Sharrett/Bloomberg via Getty Images
CHARLOTTE, NC - NOVEMBER 4: Gordon Reed casts his ballot to vote in precinct 28 on November 4, 2014, in Charlotte, North Carolina. Americans head to the polls to cast their vote in the mid-term elections which will ultimately decide what party controls the U.S. Senate. (Photo by Davis Turner/Getty Images)
MT KISCO, NY - NOVEMBER 04: New York State Governor, Andrew Cuomo (L), and his girlfriend, television personality Sandra Lee, arrive to vote during the 2014 general election at the Presbyterian Church of Mount Kisco on November 4, 2014 in Mt Kisco, New York. (Photo by Kenneth Gabrielsen/Getty Images)
KENNEBUNK, ME - NOVEMBER 4: Vicki Patterson of Kennebunk leaves a voting booth at Kennebunk Town Hall on Tuesday morning, November 4, 2014. It is the first year that Kennebunk opened its polls at 6 a.m. and Town Clerk Merton Brown said that 402 voters came through the polls in the first two hours. (Photo by Gregory Rec/Portland Press Herald via Getty Images)
SOUTH PORTLAND, ME - November 4: Scarborough voter Larry Gray proudly displays his button. (Photo by John Patriquin/Portland Press Herald via Getty Images)

WASHINGTON (AP) -- Republicans have picked up four of the six seats they need for a Senate majority, while Louisiana's hard-fought Senate race is headed to a runoff.

Republican Steve Daines won a Democratic Senate seat in Montana. Daines is moving to the Senate after just one term in the House. He won election over state lawmaker Amanda Curtis, who became the Democratic nominee after Sen. John Walsh dropped out of the race amid a plagiarism scandal.

Daines' win follows Republican pickups in Arkansas, South Dakota and West Virginia.

In Louisiana, neither Democratic Sen. Mary Landrieu nor Republican challenger Bill Cassidy received more than 50 percent of the vote, necessitating a runoff under Louisiana law.

Republican Mike Enzi of Wyoming and Democrat Al Franken of Minnesota also won re-election.

Mary Landrieu's Biggest Campaign Problems In Louisiana

More on AOL.com:
GOP mounting powerful bid for Senate control
Senate News Guide: Rundown on race for control
The moment NBC anchor Tom Brokaw's cell phone rings during election night newscast
Read Full Story

Sign up for Breaking News by AOL to get the latest breaking news alerts and updates delivered straight to your inbox.

Subscribe to our other newsletters

Emails may offer personalized content or ads. Learn more. You may unsubscribe any time.