Some Iowans aren't approving of the job governor chet culver is doing.

A poll shows Governor Culver's job approval rating has fallen to 40%, a 20% point decline since January.

The poll of 800 also showed Culver losing by 24% points in a matchup with former republican governor Terry Branstad, who is edging toward seeking the GOP nomination.

Culver also trailed Sioux City businessman Bob Vander pPlaats by eight points.