As a result, parts of Canadian County, Cleveland County and Marshall County were moved out of the 4th district in redistricting. Republican Tom Cole has represented the 4th district since 2003. Democratic primary  Candidates  Donna Marie Bebo, stay-at-home mom  Bert Smith  Results  Republican primary  Candidates  Tom Cole, incumbent  Gary D. Caissie  Results  General election  Results  District 5 Republican James Lankford, who has represented the 5th district since January 2011, is running for re-election. Tom Guild, a former political science professor at the University of Central Oklahoma and unsuccessful Democratic primary candidate for the 5th district in 2010, is seeking the Democratic nomination to challenge Lankford. There was no primary for either party as both Lankford and Guild ran unopposed for the Republican and Democratic nomination respectively and faced Modern Whig Party candidate Pat Martin and Libertarian Robert T. Murphy in the general election, both of whom were under the Independent label.
As a result, parts of Canadian County, Cleveland County and Marshall County were moved out of the 4th district in redistricting. Republican Tom Cole has represented the 4th district since 2003. Democratic primary Candidates Donna Marie Bebo, stay-at-home mom Bert Smith Results Republican primary Candidates Tom Cole, incumbent Gary D. Caissie Results General election Results District 5 Republican James Lankford, who has represented the 5th district since January 2011, is running for re-election. Tom Guild, a former political science professor at the University of Central Oklahoma and unsuccessful Democratic primary candidate for the 5th district in 2010, is seeking the Democratic nomination to challenge Lankford. There was no primary for either party as both Lankford and Guild ran unopposed for the Republican and Democratic nomination respectively and faced Modern Whig Party candidate Pat Martin and Libertarian Robert T. Murphy in the general election, both of whom were under the Independent label.

