Ron Estes, Kansas state treasurer, won the special election to fill the seat vacated by Mike Pompeo, the new C.I.A. director, in a district that President Trump carried by 27 points. Republicans currently hold the House. Democrats would need to gain 24 seats by the 2018 midterm elections to retake it. There are four special elections for House seats this year for seats held by Republicans.

Source: New York Times April 11, 2017 23:26 UTC