Republican Tom Cotton has won the 4th Congressional District seat in Arkansas after defeating Democrat Gene Jeffress.
The former management consultant and Army veteran won the seat in Tuesday's election and succeeds retiring Democratic Congressman Mike Ross. The southern Arkansas seat was the only Democrat-held U.S. House seat in Arkansas after recent Republican gains.
Cotton was favored against Jeffress, a state senator from Louann who had struggled with fundraising and organization. Cotton racked up endorsements from top Republicans, including Sen. John McCain of Arizona. He also had the backing of conservative groups such as the Club for Growth.