The fall matchup is set in Indiana’s 1st District
ABC News reports that Randy Niemeyer is projected to win the GOP primary in Indiana's 1st District. This primary wasn't competitive — the party establishment coalesced around Niemeyer — but the result is notable because the 1st District is Indiana's only congressional seat that's competitive in the general election. Niemeyer will now attempt to unseat Democratic Rep. Frank Mrvan in November in this seat that voted for Biden by just 8 percentage points in 2020.
—Nathaniel Rakich, 538