Political Horse Race: A Tightening Midterm Senate Showdown

The countdown to the midterm elections is underway, and politicians and pollsters are generally confident the House is turning blue and increasingly bullish that the Senate will follow. Underpinning this confidence is President Trump’s low approval rating, sky-high gas prices, and a divided Republican Party. But the numbers show things might not be quite as settled.

Conflicting Midterm Data

Before we delve into the key races, it’s worth considering a couple of data points. First, GOP registration in swing states is actually up from 2018 (Trump’s first midterm contest). According to CNN’s forecaster-in-chief, Harry Enten, four presidential swing states show significant bumps in Republican voter registration, and while only one of these states has a Senate race this midterm cycle, the shift is notable.

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Republicans are up four points in Arizona, five in Nevada, eight in North Carolina, and seven in Pennsylvania. These are not insignificant numbers, especially considering Democrats have made no net gains in these locations since 2024. Enten wrote on X that “the GOP is in its best position on party registration (i.e. not polls) going into a midterm in 20+ years.”

This doesn’t mean that all these new Republicans are going to pull the lever for whoever is the candidate, but it suggests recent Democratic polling gains aren’t translating into new registrations.

A second consideration is that according to a recent Politico survey, “among Democratic voters, 46% said they were mainly casting ballots to oppose Trump, while 37% said they were mainly doing so to support a candidate in their area.” That’s not exactly a ringing endorsement for the current minority party – especially as a presidential election is just two short years away and there will be no Trump on the ballot.

So where does that leave expectations for the balance of power?

A Tightening Senate?

The Cook Political Report suggests there are seven toss-up races this midterm cycle; six are currently in GOP hands, meaning Democrats need to net four seats. On the Republican side, we have Alaska, Iowa, Kansas, Maine, Ohio, and Texas. For Democrats, it’s just Michigan. Liberty Nation News’ polling aggregator tool, The Public Square, delivers some surprising insight. Let’s examine the seats that are (for now) red:

Alaska

Democrat Mary Peltola is hoping to unseat Republican Senator Dan Sullivan. Polling averages have Peltola almost two points clear, and with a second Dan Sullivan on the four-person ballot that could muddy the waters, she should be looking at an upset victory. However, just one month ago, she led by four points. A halving of her lead as the race draws near could be causing night sweats where once there was confidence.

Iowa

Polls are also tightening in the Hawkeye State. A month ago, Democrat Josh Turek was ahead by a full point against Ashley Hinson in the race to replace Joni Ernst; that’s down to a barely perceptible 0.3 today.

Kansas

Kansas is going against the grain here. Thirty days ago, Republican Roger Marshall was ahead of Democrat Adam Hamilton by almost two points. That has flipped, with the Democrat contender now being a full point ahead.

Maine

GOP Senator Susan Collins is fending off a challenge from late-entering candidate Troy Jackson, who back in September looked comfortably on track to defeat the long-serving incumbent. An almost five-and-a-half-point lead has crumbled to just over one point.

Ohio

For incumbent Republican Senator Jon Husted, a strong challenge from former Senator Sherrod Brown is proving difficult in a state that went for Trump by double digits in 2024. Still, there is a tightening over the last month, from a four-point lead for Brown, down to three points.

Texas

Dropping from a four-point lead in September, Democrat James Talarico is now only two points ahead of Republican Ken Paxton. Back in 2018, the closest Lone Star State Senate election in decades saw challenger Beto O’Rourke come within 2.6 points of defeating incumbent Senator Ted Cruz, a reminder that even a Democratic wave year fell short in Texas. However, Paxton is a scandal-ridden candidate whom even stalwart GOP supporters may balk at casting a ballot for.

Conventional Wisdom Says What?

Of the six Republican-held toss-ups, five have shown poll numbers tightening. While flipping the Senate was always going to be a challenge for Democrats, this narrowing of margins suggests that the public displays of confidence could be more bravado than belief. Democrats lead in every GOP-held toss-up, but those leads are shrinking, and mostly within a few points, so control is closer to a coin flip than conventional wisdom suggests.