Democratic incumbent: Mark Pryor
There is no Republican candidate.
Pryor, 45, has been in the Senate since 2003. He previously served in the state legislature, and as state attorney general. His father, David Pryor, served in both houses of Congress, and as governor of Arkansas.
The Republican Party has not made the same inroads into Arkansas politics, as it has in other southern states. Pryor's predecessor in this Senate seat, Tim Hutchinson, whom Pryor defeated in the 2002 election, is the only Republican to have represented Arkansas in the Senate since Reconstruction.