Democratic Sen. Mark Pryor is maintaining his advantage over Rep. Tom Cotton in the latest Arkansas Senate poll.

A survey conducted by Global Strategy Group, a Democratic polling firm, finds Pryor leading Cotton, his Republican challenger, 47 percent to 41 percent.

Pryor is widely considered among the most vulnerable Democratic incumbents running in 2014 and a prime target for Republicans hoping to retake control of the Senate.

The poll also found only 11 percent of voters to be undecided in the race.

Most surveys to date of likely Arkansas voters have shown Pryor and Cotton running roughly neck-and-neck.