Blue wave nearly swallowed some of America's reddest states as election data exposes GOP's close calls

Races in traditionally staunch Republican strongholds came incredibly close to flipping amid Tuesday night's landslide Democratic victory, even in states where GOP candidates enjoyed overwhelming financial advantages.

Signs of something going horribly wrong for the GOP appeared late in the election cycle when Fox News rated the Senate races in South Carolina and Kansas, two states with decades-long loyalty streaks for the Republican Party, as competitive. As results poured in on election night, however, it became clear that even states that practically nobody thought would be competitive, such as Louisiana and Tennessee, were coming within a razor's edge of going blue.

Mississippi, seen by most political forecasters as among the safest of GOP seats, remains undecided as of publication, with just dozens of votes separating incumbent Republican Sen. Cindy Hyde-Smith and her Democratic challenger, Scott Colom.

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Republican Sen. Marsha Blackburn of Tennessee is running for governor in the 2026 race to succeed term-limited GOP Gov. Bill Lee. (Joe Raedle/Getty Images)

In Tennessee, for instance, Democratic gubernatorial nominee Jerri Green spent just over $2 million, dwarfed by the nearly $13 million Sen. Marsha Blackburn, the GOP nominee, poured into the race. Outside groups burned through millions more to boost Blackburn’s candidacy.

The result of outspending a Democrat by nearly 6-to-1 in one of the reddest states in the country was Blackburn defeating Green by less than three points in a state that favored Republicans by almost 30 points in 2024.

Louisiana’s Senate race told a similar story.

The Republican nominee, Rep. Julia Letlow, and her allies paid out approximately $9.4 million to win the seat, compared to the roughly $3.89 million Democrats spent on the race. Letlow ultimately won by just under two points in a state President Donald Trump carried by roughly 22 points in 2024, underscoring the dramatic erosion of the GOP's advantage in one of its longtime strongholds.

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Democrat Adam Hamilton defeated Sen. Roger Marshall in Kansas, ending the state’s 94-year streak without a Democratic Senate win. (Jim Vondruska/Getty Images)

Many Democratic strategists and observers have lamented that the party didn’t spend more money on long-shot races that could have delivered even more commanding margins to liberals when the new class of lawmakers and governors take office early next year.

Even Florida, a state that has become nearly synonymous with Republican ascendancy, saw the GOP come dangerously close to losing its grasp, an outcome that was avoided, in the telling of some, thanks to the political apparatus constructed by Gov. Ron DeSantis.

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James Talarico’s victory over Ken Paxton helped make Texas one of the biggest upsets of the 2026 midterms, as Democrats flipped a Senate seat in a state Trump carried by double digits in 2024. (Brandon Bell/Getty Images)

Republicans outspent Democrats by roughly five-to-one in their bid for the state’s governor's mansion, ultimately winning by less than two points. In 2022, DeSantis carried the state by nearly 20 points. The GOP won its Senate race in the Sunshine State by a similar margin, also outspending the opposition by millions.

Similar trends played out across the country, with multiple House and state legislative seats that Republicans won by double digits in 2024, flipping to Democratic control.

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The election night bloodbath for the GOP has ignited a brutal blame game within the party that could easily bleed into the 2028 Republican presidential primary.