Lankford wins Republican nomination for Senate in Oklahoma primary election.

Oklahoma GOP Sen. James Lankford on Tuesday won his party's nomination to seek a second full term in November. 

The Associated Press called the race for Lankford, who had two challengers in the primary.  

Lankford, who was expected to win his 2022 primary, was first elected to the Senate in the 2014 special election for the seat left vacant by the retirement of GOP Sen. Tom Coburn. He was reelected in 2016.