UPDATE 10:05 PM
Early on, Kansas is split with its U.S. house seats, as Republicans and Democrats each lead in two districts.
With about 25 percent of the votes in, Republican Roger Marshall leads in District One.
Fellow Republican Ron Estes leads in District Four with 32 percent of the votes in.
The Democrats also lead in two districts, with Paul Davis leading in District Two and Sharice Davids leading in District Three.
UPDATE 10:35 PM
Two of the U.S. House seats have been called in Kansas.
Republican candidate Ron Estes won District Four, defeating Democratic candidate James Thompson.
Democrats also claimed a house seat, with Democratic candidate Sharice Davids defeating Republican candidate Kevin Yoder for District Three.
Republicans still lead for District One, while Democrats lead for District Two.