Colorado’s week-long, early, in-person voting period begins June 22 for the state’s June 30 primaries, the last round of preliminary contests in the nation’s 2026 midterms cycle until Aug. 4, when five states—including Arizona and Michigan—stage inter-party elections.
About one-quarter to one-third of Colorado’s 4.6 million registered voters are expected to cast ballots to set November elections for governor, U.S. Senate, eight U.S. House seats, dozens of state legislative posts, and other state and local elections.
The most watched battles are expected to unfold in both parties’ gubernatorial contests to succeed term-limited Democratic Gov. Jared Polis, and in the Democratic Congressional District 8 (CD 8) primary, where the winner will bring favorable odds into a November clash with first-term incumbent Rep. Gabe Evans (R-Colo.), consistently ranked among 2026 midterms’ most vulnerable House incumbents….