By MELINDA DESLATTE, Associated Press

BATON ROUGE, La. (AP) — Louisiana's extra-long election cycle has ended with a Republican sweep.

The GOP has cemented its U.S. Senate majority and is holding onto the two remaining House seats that were still undecided before Louisiana's runoff election Saturday.

Republican state Treasurer John Kennedy won Louisiana's open U.S. Senate seat, giving the GOP a 52-48 edge in the chamber starting in January.

Kennedy defeated Democrat Foster Campbell, a state utility regulator whose chances were seen as such a long-shot that national Democratic organizations offered little assistance.

In two House runoffs, voters chose two more Republicans — state Rep. Mike Johnson and Clay Higgins, a former sheriff's captain known as the "Cajun John Wayne."