Oklahoma's longest-serving members of the U.S. House face primary election opposition from challengers who say the incumbents' time in Washington has put them out of touch with constituents back home and their votes do not represent voters' values.
Third District Rep. Frank Lucas, the senior member of Oklahoma's delegation, faces fellow Republican Desiree Brown of Hennessey in the June 28 primary, in which Lucas is seeking a 12th term in the sprawling western Oklahoma district. The winner will meet Democrat Frankie Robbins of Medford in the Nov. 8 general election.