WASHINGTON — With two months to go before Election Day, Democrats continue to have the advantage in the fight for the House as Inside Elections shifts its race rating of seven more districts in the party’s favor.

Some of the movement affects the current contours of the House battleground.

The contest for California’s 21st District, represented by Democrat Jim Costa, moves from Likely Democratic to Solid Democratic and off the list of competitive races as Republicans focus their resources elsewhere.

And three open races for GOP-held seats enter battleground territory, shifting from Solid Republican to Likely Republican: Kentucky’s 6th District (represented by Andy Barr), Nevada’s 2nd (Mark Amodei) and South Carolina’s 1st (Nancy Mace).

While the House battleground typically includes a disproportionately high number of seats held by one party in wave election years, things are remarkably symmetrical across the current list of districts to watch.

Republicans are defending 37 seats rated as competitive by Inside Elections, including the California seat where Rep. Kevin Kiley, an independent who still caucuses with the GOP, is running for reelection. Democrats are defending 29 seats. (This does not include the handful of districts rated as Solid takeovers for either party as a result of redistricting.)

In contrast, on the eve of the 2010 midterms, Democrats were defending 100 of the 109 competitive seats, and Republicans went on to flip the House with a net gain of 63 seats.

There’s also symmetry in the race ratings. There are currently 185 House races rated Solid Republican compared with 184 rated Solid Democratic. Twenty-eight races are rated Likely/Lean/Tilt Republican compared with 22 similarly rated contests on the Democratic side.

But while the ratings may not be evidence of a looming Democratic wave election, it’s important to remember that Democrats don’t need a wave to win the House majority. They need a net gain of just three seats to get to the magic number of 218.

Right now, that would mean winning 12 of the 16 races that Inside Elections rates as Toss-ups. That is well within reach in the current political environment, and the battleground could continue to shift toward Democrats in the final weeks.

Overall, Inside Elections currently projects House Democrats to gain anywhere from two to 10 seats — almost any outcome within that range would result in a Democratic majority. The projection would likely be higher — closer to five to 15 seats or even 10 to 20 seats — had it not been for the mid-decade redistricting battle and related court decisions that resulted in more redrawn seats that give Republicans an advantage.

Inside Elections has also made some shifts within the current battleground.

The contests for two Democratic seats fall down the list of Republican takeover opportunities, including California’s 45th District (represented by Derek Tran) and New Jersey’s 9th (Nellie Pou). Those districts could become more competitive in a different cycle and different political environment. On the other side of the ledger, two Republican seats look increasingly vulnerable. The race for Colorado’s 5th District (represented by Jeff Crank) shifts from Likely Republican to Lean Republican, while Texas’ 15th (Monica De La Cruz) moves from Lean Republican to Tilt Republican.

In general, there are a lot of districts where Republican strength appears soft against a unified and motivated Democratic base. If it becomes clearer that GOP turnout will be lower than usual, we could see a surge in Democratic takeover opportunities in places where the party would normally have no realistic chance of winning.

It’s certainly possible that the macro and micro midterm analysis showing Democrats with the advantage is off. There could be a systemic polling “miss,” even though polling in cycles without Donald Trump on the ballot is usually better than presidential years. Trump’s political standing could also improve, even though his job approval rating seems headed in the wrong direction. Or the election could become a referendum on the Democratic Socialists of America, even though voters are typically focused on current economic conditions.

But all of that would ignore the preponderance of historical and recent data that point to 2026 being a good Democratic year.

These are the seven House races moving in Democrats’ favor:

— California’s 21st District (Jim Costa, D): from Likely Democratic to Solid Democratic

— California’s 45th District (Derek Tran, D): from Tilt Democratic to Lean Democratic

— Colorado’s 5th District (Jeff Crank, R): from Likely Republican to Lean Republican

— Kentucky’s 6th District (Open; Andy Barr, R): from Solid Republican to Likely Republican

— New Jersey’s 9th District (Nellie Pou, D): from Lean Democratic to Likely Democratic

— Nevada’s 2nd District , R): from Solid Republican to Likely Republican

— South Carolina’s 1st District (Open; Nancy Mace, R): from Solid Republican to Likely Republican

— Texas’ 15th District (Monica De La Cruz, R): from Lean Republican to Tilt Republican

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