After just one term in the House , Republican Tom Cotton is headed for the Senate . Cotton defeated two - term Sen. Mark Warner , who ' n't overcome Obama 's unpopularity in the state . Cotton faced his most stinging criticism over his opposition to reauthorizing the Violence Against Women Act . The win is one of the seats Republicans needed if they are to regain control of the Senate .
After just one term in the House , Republican Tom Cotton is headed for the Senate . Cotton defeated two - term Sen. Mark Warner , who ' n't overcome Obama 's unpopularity in the state . The win is one of the seats Republicans needed if they are to regain control of the Senate .