This is not a results story. It is a structural explainer — a user's manual for the 2026 US midterm elections published by the Guardian alongside its live results tracker. The content lays out how Congress works, how votes are counted, and why some races use different rules than others. Treat it accordingly: as infrastructure documentation, not political analysis. The House of Representatives fields all 435 seats every two years. Each district is roughly equal in population. The Senate, by contrast, rotates one-third of its 100 seats per cycle, with each senator serving six years. The structural asymmetry is baked in: Wyoming's 580,000 residents carry the same Senate weight as California's 39 million. This is not a bug; it is the original constitutional bargain, and it shapes every policy fight that follows. Voting systems vary meaningfully by state. Most use first-past-the-post. Georgia and Louisiana require a 50% threshold, triggering runoffs if no candidate clears it. Maine and Alaska use ranked-choice voting, eliminating the least-supported candidate iteratively until someone wins a majority. California and Washington operate top-two "jungle" primaries where both general-election candidates can be from the same party. These are not cosmetic differences — they change who runs, who wins, and what coalitions are viable. Two Senate seats — Florida and Ohio — are holding special elections because their previous occupants, Marco Rubio and JD Vance, resigned to join the executive branch after the 2024 presidential election. Special elections carry different dynamics: shorter campaign timelines, lower-profile candidates, and often lower turnout, which historically advantages the party with stronger organizational infrastructure. Governors are elected by direct popular vote for four-year terms in most states, with Vermont and New Hampshire as two-year exceptions. Governors wield executive orders, budget authority, legislative vetoes, and appointment powers. In an era of federal gridlock, gubernatorial races increasingly determine the policy environment citizens actually live under — from abortion access to Medicaid expansion to election administration. The Associated Press calls races before all votes are counted, projecting winners when it determines the trailing candidate has no remaining path to victory. This practice is routine and methodologically sound, but it remains a persistent source of public confusion and conspiracy theories. AP's vote-total estimates update over days as mail ballots and provisional votes are processed. The piece is pure mechanics — no horse-race analysis, no partisan framing, no policy stakes. That is both its strength and its limitation. It tells you how the machine works without telling you what the machine is producing or for whom.
