WICHITA, Kan. (AP) — Former Kansas congressman Todd Tiahrt is running again in the state's 4th Congressional District and will challenge incumbent Mike Pompeo in the Republican primary. Tiahrt entered the race with an announcement Thursday at the Kansas Aviation Museum in Wichita. He represented the south-central Kansas district from 1995 until 2011. Pompeo is seeking his third term and was elected in 2010 to succeed Tiahrt. Both are conservative Republicans. But Tiahrt said he had been asked for months to run. He told cheering supporters has a better track record than Pompeo and differs with the incumbent on foreign policy. Tiahrt gave up the House seat to run for U.S. Senate in 2010. He lost the Republican Senate primary to Jerry Moran, who went on to win the race that November.