Republicans who haven't faced serious reelection fights in years are suddenly campaigning like they're running in swing districts.

Why it matters: Democrats are eyeing House districts so Republican that they weren't even on the party's radar at the start of the 2026 midterm election cycle.

That includes incumbents like Reps. John McGuire (R-Va.) and Lauren Boebert (R-Colo.), neither of whom were seen as remotely vulnerable coming into the second Trump term.

Most of these seats haven't elected a Democrat in years or even decades and are only truly in play if the party is winning nationally by double digits. Even then, some are a stretch.

But candidates in Trump country say frustration with rising prices, corruption, the war in Iran and political incumbency in general have led to a sea change that could precipitate some shock results on Nov. 3.

State of play: Rep.…