A hotly contested Democratic primary in Nebraska's Omaha-area Second Congressional District is shaping up as one of the more unusual dilemmas of the 2026 midterms: the candidate best positioned to flip the seat could, under certain circumstances, inadvertently put the district's coveted electoral vote at risk in a future presidential race, according to the New York Times.The district, known nationally as the "blue dot" for the speck of Democratic blue it can produce on an otherwise red map, awards a single Electoral College vote to its presidential winner. Nebraska and Maine are the only states that split their electoral votes by congressional district, a quirk that made the blue dot a potential tipping point in 2024.State Senator John Cavanaugh, the progressive frontrunner backed by the Congressional Progressive Caucus, leads the Democratic primary. But his rivals warn that if he wins the House seat and vacates his state legislative seat, Republican Gov. Jim Pillen could appoint a replacement — potentially giving Republicans enough votes to pass a winner-take-all electoral system, eliminating the blue dot entirely.Though Republicans have held the House seat for most of the last three decades, the blue dot has gone Democratic in three of the last five presidential races, including for Kamala Harris in 2024 and Joe Biden in 2020. In a sufficiently close presidential election, that single electoral vote could prove decisive, as it nearly did in 2024 when some analysts identified a plausible 269-269 Electoral College tie scenario in which the blue dot would break the deadlock.Cavanaugh and others, including the Democratic mayor of Omaha and departing Republican Rep. Don Bacon, say the threat is overstated. Republicans already hold a supermajority in the state legislature and have declined to move against the blue dot. Cavanaugh argues Democrats are on track to gain state legislative seats in the fall, easily offsetting any loss."They control all of the levers of power in the state of Nebraska, and they haven't eliminated the blue dot," Cavanaugh told the Times. The primary is on Tuesday.