2016 United States Senate election in Oklahoma
The 2016 United States Senate election in Oklahoma was held November 8, 2016 to elect a member of the United States Senate to represent the State of Oklahoma, concurrently with the 2016 U.S. presidential election, as well as [United States Senate United States House of Representatives elections, 2016|elections, 2016|other elections] to the United States Senate in other states and elections to the United States House of Representatives and various state and local elections. The primaries were held June 28.
Incumbent Republican Senator James Lankford won re-election to a full term in office by a landslide margin of 43%, sweeping every county statewide in the Republican stronghold.
Republican primary
Candidates
Declared
- James Lankford, incumbent senator
Democratic primary
Candidates
Declared
- Mike Workman, political consultant and nominee for Labor Commissioner in 2014
Withdrew
- Steve Perry, attorney and nominee for OK-05 in 2008
Declined
- Dan Boren, former U.S. Representative
- Joe Dorman, former state representative, and nominee for Governor in 2014
- Brad Henry, former governor of Oklahoma
- Constance N. Johnson, former State Senator and nominee for the U.S. Senate in 2014
Libertarian primary
Candidates
Declared
- Dax Ewbank, Republican candidate for Governor in 2014
- Robert Murphy, independent candidate for OK-05 in 2014
General election
Results
By congressional district
Lankford won all five congressional districts.| District | Lankford | Workman | Representative |
| 65% | 27% | Jim Bridenstine | |
| 69% | 24% | Markwayne Mullin | |
| 76% | 17% | Frank Lucas | |
| 68% | 23% | Tom Cole | |
| 60% | 31% | Steve Russell |