A continuous 24-hour debate marathon for the 2026 midterm elections began at 8:00 a.m. ET today on C-SPAN3, featuring high-stakes races that will help determine control of the Senate and key executive offices.

The lineup includes Senate debates in South Carolina, Montana, Maine, Alaska and Georgia—five of the most competitive races shaping the battle for Senate control. Majority Leader John Thune's Republicans and Democrats are competing hard in each.

Maine's schedule includes two separate Senate debates, suggesting a contested primary or multiple rounds of general election forums. Georgia features debates for both its Senate and gubernatorial seats, reflecting the state's status as a prime battleground for both parties. Iowa's gubernatorial debate and Alaska's Senate contest round out the programming.

The 24-hour format gives voters extended access to hear directly from candidates on their platforms and policy positions ahead of 2026.