With most of the votes counted, Kansas Congressman Jerry Moran had just shy of 50 percent to overcome Representative Todd Tiahrt's 45 percent. Two minor candidates split the rest.
"I'm honored by your enthusiasm," said Moran. "Let's take this enthusiasm and take it to November and restore America."
Only a few thousand votes separated the candidates at the end. Moran goes into November facing Democratic primary winner Lisa Johnston who is a dean at Baker University. Kansas has not elected a Democrat to the Senate since 1932.
The GOP nomination for the U.S. Senate in November was one of the bitterest fights in Kansas. In the end attack ads devolved into the campaign between Congressmen Jerry Moran and Todd Tiahrt. Moran claimed victory minutes before midnight.