matt_strawn.jpegDES MOINES, Iowa (AP) _ The chairman of Iowa's Republican Party says he is stepping down following criticism of the Jan. 3 caucus vote count.

In a written announcement Tuesday, chairman Matt Strawn didn't address the caucus count in which a close race led him to first declare Mitt Romney the winner by eight votes.

Two weeks later, Strawn initially declined to name a winner when a recount showed Rick Santorum with a 34-vote edge.

Santorum was later declared the winner. Strawn says his resignation will be effective Feb. 10.