Incumbent Republican Mississippi Sen. Robin Robinson, R-Laurel, lost her bid for reelection to Senate District 42 after Don Hartness defeated her in the Republican special primary election on Tuesday.

A closeup of an older man in a suit with a US Flag pin on his lapel
Don Hartness won the Republican nomination for Senate District 42. Photo courtesy Don Hartness

She was the only incumbent to lose reelection in Tuesday night’s contested special election primaries, which included five state Senate seats and two state House seats.

Hartness garnered 4,241 votes while Robinson received 1,675 votes. Robinson’s brother, RJ Robinson, also ran in the primary, collecting just 83 votes.

No Democrats ran for Senate District 42, so Hartness will go unchallenged in the Nov. 4 special election.

“Congratulations to Don Hartness,” Robin Robinson said in a Tuesday night Facebook post. “I am truly grateful for the opportunity to serve as your state Senator. I hope and pray that God continues to bless Mississippi and her people.”

Robinson’s district is one of several legislative districts that had to hold special elections this year after a three-judge panel ordered the Mississippi Legislature to undergo redistricting to ensure Black voters have equal participation in the political process. 

Reeves Frames Elections as Referendum Against Medicaid Expansion

Mississippi Gov. Tate Reeves framed Tuesday night’s results as a rejection of Medicaid expansion by Republican primary voters, noting that while Robinson lost, two Republican senators (Michael McLendon and Chris Johnson) who voted against a bill to expand Medicaid in 2024 won reelection.

“Senator Parker and Senator Robinson both voted to expand Obamacare in MS and neither of them will be returning to the Senate,” Reeves wrote in a Facebook post today, referring to Sen. David Parker.

Governor Tate Reeves wearing a navy suit jacket, powder blue shirt, and red striped tie speaks at a podium
Mississippi Gov. Tate Reeves claimed that “Senator Parker and Senator Robinson both voted to expand Obamacare in MS and neither of them will be returning to the Senate” in a Facebook post on Aug. 6, 2025, without noting that Parker was not returning because he decided to retire, not because he lost an election. Photo by Heather Harrison, Mississippi Free Press

The governor’s attempt at identifying a pattern was misleading, though; Parker, a Republican from Southaven who represents Senate District 2, chose not to run for reelection this year and was not on the ballot. Robinson was the only pro-Medicaid expansion incumbent to lose a primary on Tuesday.

Though both Republican-led chambers passed Medicaid expansion bills last year, neither could agree on a final version, and the effort died at the time. Reeves added in his Facebook post Wednesday that he believes “Senator Robinson would have voted to sustain a veto but she never got the chance.”

Mississippi’s Republican legislative leaders did not bring Medicaid expansion back up for a vote this year amid uncertainty over the new Trump administration’s approach to Medicaid. If expanded, Medicaid could help provide around 200,000 working Mississippians with health care who are currently uncovered.

One House Republican who voted for Medicaid expansion, Rep. Dana McLean of Columbus, ran unopposed for her Senate District 39 seat in Tuesday’s special elections. So did a Senate Republican who voted against Medicaid expansion, Rep. Joey Fillingane of Sumrall, who represents Senate District 41. Two Democratic incumbents who joined their fellow party members to vote for Medicaid expansion also faced no challengers Tuesday: Rep. Karl Gibbs of West Point (House District 36) and Sen. Juan Barnett of Heidelberg (Senate District 34).

More Results

Mississippi House District 16 incumbent Rep. Rickey Thompson, D-Shannon, won 1,325 votes, beating opponent Brady Davis’ 348 votes in the Democratic primary. Republicans did not field a candidate for the district and Thompson will go unchallenged in the general election.

Incumbent Mississippi House Rep. Kabir Karriem, D-Columbus, won the Democratic primary for House District 41 with 1,310 votes compared to the 248 votes challenger Pierre Beard, Sr., garnered. Karriem will not face a general election opponent.

A man in a suit leans into speak into a microphone
Mississippi House of Representatives Judiciary B Committee member Rickey Thompson, D-Shannon, asks a question during the committee’s meeting on Thursday, Feb. 15, 2024, at the Mississippi Capitol in Jackson, Miss. AP Photo/Rogelio V. Solis

Mississippi Senate District 1 incumbent Sen. Michael McLendon, R-Hernando, amassed 3,935 votes while his opponent Jon Stevenson received 1,890 votes. McLendon will face Democrat Chris Hanna in the general election.

“I look forward to continuing the work we started—standing up for our rural communities, pushing back against government overreach, protecting our conservative values, and making sure DeSoto and Tate stay a place we’re proud to call home,” McLendon said in a Tuesday night Facebook post.

With Parker deciding not to run for reelection for Mississippi Senate District 2, the Republican Party cancelled its primary and made Charlie Hoots its nominee. On Tuesday night, Theresa Gillespie Isom defeated Robert Walker in the Democratic primary with 768 votes compared to Walker’s 187. 

In a tight race, incumbent Mississippi Senate District 11 Sen. Reginald Jackson, D-Marks, won the bid for reelection with 275 votes versus 215 votes for his opponent, former Mississippi House Rep. Abe Hudson, Jr. Jackson’s Republican opponent in the general election will be Kendall Lee Prewett.

Closeup of a man in a suit, seated in a busy room
Mississippi Senate Medicaid Committee member Sen. Chris Johnson, R-Hattiesburg, listens as committee members discuss a bill on Tuesday, March 5, 2024, at the state Capitol in Jackson, Miss. AP Photo/Rogelio V. Solis

Incumbent Mississippi Senate District 11 Sen. Chris Johnson, R-Hattiesburg, defeated Patrick Lott by garnering 2,282 votes, while Lott received 1,961 votes. Democrat Shakita Taylor will be Johnson’s opponent in the general election.

Johnson extended his gratitude to voters for choosing him to move forward in the Nov. 4 election.

“You can’t win an election on your own, and so many good people have stood behind us and helped. But there are also many people who did not vote to support me, and I hope to continue to work and earn their support going into November and future races,” the incumbent senator said in a Wednesday morning Facebook video.

The winners of Tuesday’s primaries will head to the Nov. 4 special election. On the same day, two additional Senate seats will be on the ballot. In Senate District 19, Democrat Dianne Dodson Black will face incumbent Republican Sen. Kevin Blackwell. In Senate District 45, Republican Anna Rush will go up against Democrat Johnny DuPree.

State Reporter Heather Harrison has won more than a dozen awards for her multi-media journalism work. At Mississippi State University, she studied public relations and broadcast journalism, earning her Communication degree in 2023. For three years, Heather worked at The Reflector student newspaper: first as a staff reporter, then as the news editor and finally, as the editor-in-chief. This is where her passion for politics and government reporting began.
Heather started working at the Mississippi Free Press three days after graduation in 2023. She also worked part time for Starkville Daily News after college covering the Board of Aldermen meetings.
In her free time, Heather likes to sit on the porch, read books and listen to Taylor Swift. A native of Hazlehurst, she now lives in Brandon with her wife and their Boston Terrier, Finley, and calico cat, Ravioli.

Award-winning News Editor Ashton Pittman, a native of the South Mississippi Pine Belt, studied journalism and political science at the University of Southern Mississippi. Previously the state reporter at the Jackson Free Press, he drove national headlines and conversations with award-winning reporting about segregation academies. He has won numerous awards, including Outstanding New Journalist in the South, for his work covering immigration raids, abortion battles and even former Gov. Phil Bryant’s unusual work with “The Bad Boys of Brexit" at the Jackson Free Press. In 2021, as a Mississippi Free Press reporter, he was named the Diamond Journalist of the Year for seven southern U.S. states in the Society of Professional Journalists Diamond Awards. A trained photojournalist, Ashton lives in South Mississippi with his husband, William, and their two pit bulls, Dorothy and Dru.