TOPEKA, Kan. (AP) — A Kansas congressman is crying foul after a candidate who shares his name signed up to run against him in the Republican primary.

Rep. Ron Estes won a tougher-than-expected special election last year for the Wichita-area seat formerly held by U.S. Secretary of State Mike Pompeo.

The other Ron Estes from Wichita on the August primary ballot describes himself online as a father of two and a first-time candidate. Campaign finance records show he and his wife have made multiple contributions to Democrats though both are registered Republicans.

The incumbent’s campaign sees the filing as an attempt to deceive voters. The challenger didn’t immediately return messages Friday seeking comment.

The state plans to list the incumbent as Rep. Ron Estes and the challenger as Ron M. Estes.