Why It Matters
Rep. Julia Letlow (R-LA) won Louisiana's open U.S. Senate seat on Nov. 3, defeating Democrat Jamie Davis and keeping the seat in Republican hands. Letlow received 745,963 votes, or 50.9%, compared with Davis' 720,106 votes, or 49.1%, a margin of 25,857 votes, according to the Associated Press. The results remain unofficial pending certification.
Letlow's narrow victory was a notable outcome in a state where Republicans had been heavily favored. The race became unexpectedly competitive after Davis, a farmer and former local official, campaigned on affordability and economic concerns. Letlow will become Louisiana's first Republican woman elected to the U.S. Senate and the second woman elected to represent the state in the chamber.
Although Republicans retained the Louisiana seat, Democrats regained control of both the House and Senate nationally. That shift will give Democrats control of congressional committees, legislative agendas and oversight of President Donald Trump's administration when the new Congress convenes in January.
The Road to the General
The seat opened when incumbent Sen. Bill Cassidy (R-LA) lost the May 16 Republican primary, finishing third with 24.8% of the vote. Cassidy received 99,496 votes, 80,407 fewer than Letlow's 179,903. John Fleming finished second with 113,437 votes, or 28.3%, more than 16 percentage points behind Letlow, who received 44.8%.
Letlow subsequently defeated Fleming in the June 27 Republican runoff, receiving 180,002 votes, or 56.9%, to Fleming's 136,591 votes, or 43.1%. Her victory followed an endorsement from Trump, who had backed her challenge to Cassidy. Davis secured the Democratic nomination in the June 27 runoff, taking 79.91%, or 156,789 votes, against Gary Crockett, who received 20.09%, or 39,423 votes.
The Incumbent's Record
Cassidy first took office Jan. 3, 2015, giving him nearly 12 years of Senate service by the end of his term. He previously represented Louisiana's 6th Congressional District in the House from 2009 to 2015.
His committee assignments, listed on his official Senate page, included the Senate Finance Committee, the Health, Education, Labor and Pensions Committee, the Energy and Natural Resources Committee, and the Veterans' Affairs Committee. Cassidy chaired the HELP Committee during the 119th Congress.
Cassidy, a physician, focused much of his legislative work on health care, public health, energy and fiscal policy. His decision to vote to convict Trump during the president's second impeachment trial in 2021 became a significant issue in his relationship with Republican voters and the party's leadership.
Money
Letlow's campaign raised $7,062,068 and spent $6,618,899, while Davis raised $5,019,888 and spent $3,764,960, giving Letlow a fundraising advantage of about $2 million. Letlow reported $443,170 in cash on hand, compared with Davis' $1,254,929, meaning Davis retained substantially more cash despite raising less overall.
Outside spending was heavily concentrated on Letlow and the Republican primary. The race record listed approximately $22.4 million in independent expenditures involving Letlow, while recording no outside spending supporting or opposing Davis as of the reporting cutoff.
Republican-side outside groups reported approximately $12.1 million opposing Letlow and $11.5 million supporting her. The Louisiana Freedom Fund accounted for approximately $10.8 million in opposition spending, while the Accountability Project Inc. accounted for approximately $9.5 million in support.
Fleming's campaign reported $12,367,652 in total disbursements, yet he finished second in the May 16 Republican primary with 28.3% of the vote, compared with Letlow's 44.8%. He subsequently lost the June 27 runoff.
Campaign Attacks
Two documented advertising campaigns defined the closing weeks of the general election, with Davis attacking Letlow over stock transactions and a pro-Letlow super PAC portraying Davis as an extreme liberal.
Davis' campaign ran an October advertisement accusing Letlow of signing a confidential agreement with Meta before investing in Meta and Nvidia and failing to disclose the trades on time, framing the conduct as improper stock trading. FOX 8/WVUE reported the advertisement on Oct. 14. NOLA.com/Gambit also covered the advertisement's claims and reported that a Letlow spokesperson said she did not know about the trades.
The allegations raised questions about congressional financial disclosures and potential conflicts of interest, but the campaign's characterization did not establish that Letlow personally directed the transactions or knowingly violated disclosure requirements.
A super PAC supporting Letlow, the Accountability Project Inc., posted an advertisement Oct. 28 portraying Davis as an extreme liberal and claiming he supported abortion "on demand until birth," taking away gun rights, socialized health care, citizenship for undocumented immigrants, abolishing Immigration and Customs Enforcement, and weaker criminal sentences.
NOLA.com/Gambit reported Oct. 29 that several of those claims were inaccurate or exaggerated. The advertisement's assertions reflected the super PAC's portrayal of Davis rather than established positions he had endorsed.
Pre-Election Indicators
The Cook Political Report rated the race Solid Republican as of Feb. 11, 2025, according to Cook's race page. The consensus rating across forecasters stood at Likely Republican as of Nov. 3, according to the race record.
On Kalshi's election-winner market, Letlow was priced at 100% and Davis at 0% as of Nov. 3, according to Kalshi's market page. Without a timestamp establishing that the prices preceded the election result, those figures cannot be treated as a verified pre-election forecast.
The Silver Bulletin polling average as of Oct. 31 showed Letlow leading Davis 47.8% to 43.8%, a 4-point advantage. Her unofficial final margin of approximately 1.8 percentage points was narrower than that polling average. No additional final polling average with a verified source page was available in the race record.
Access the Legis1 platform for comprehensive political news, data, and insights.
Spot something wrong? Report an issue with this article
