Democrat Scott Colom has won Mississippi's closely contested U.S. Senate election, defeating Republican incumbent Cindy Hyde-Smith in one of the most consequential upsets of the 2026 midterms. The victory makes Colom Mississippi's first Black senator since 1881, and its first Democratic senator elected since 1982. His success in a traditionally Republican stronghold extends the Democratic gains that have transformed the balance of power in Washington.

The Associated Press declared Colom the winner on November 11, eight days after the November 3 election. With approximately 99% of precincts reporting, Colom led Hyde-Smith by 49.2% to 48.7%, a margin of approximately 4,645 votes. The unusually prolonged count involved absentee and provisional ballots. Although the results had not yet been certified when the race was called, Hyde-Smith conceded and congratulated Colom.

Colom's election represents a major milestone in Mississippi's complicated racial and political history. The victory was particularly unexpected because President Donald Trump carried Mississippi by nearly 23 percentage points in 2024. Republicans had also held both Mississippi Senate seats for decades.

Colom’s win will extend the number of seats for the incoming Democratic majority in the US Senate to 55, and it is likely that it will grow to 56 once Alaska’s final results are certified. Which means Democrats flipped nine Senate seats in 2026, the largest change in fifty years…

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In 1870, Mississippi sent Hiram Revels to Washington, making him the first African American U.S. senator. He was followed by Blanche K. Bruce, a formerly enslaved man elected by the Mississippi Legislature in 1874 who served from 1875 to 1881. No Black senator has represented Mississippi since Bruce left office, meaning Colom will end a 145-year absence when he takes office in January 2027.

Unlike Revels and Bruce, who were selected by state legislators before the adoption of direct Senate elections, Colom achieved his victory through a statewide popular vote. Colom, a 43-year-old district attorney, centered his campaign on rising living costs, health care access, and frustration with Washington. His campaign criticized Hyde-Smith over grocery prices, particularly her suggestion that consumers could choose alternative proteins rather than expensive beef.

Strong Black voter participation, economic dissatisfaction, and support extending beyond traditional Democratic constituencies contributed to his narrow victory. Mississippi has the nation's highest proportion of Black residents, approaching 40%, but historically has voted overwhelmingly Republican in statewide elections. Colom also received support from prominent Democratic figures, including Senators Raphael Warnock and Cory Booker.

The Mississippi result offers Democrats evidence that economic concerns and increased voter participation can create competitive contests even in traditionally Republican states. Colom's victory carries significance beyond one Senate seat. It demonstrates the potential for changing political coalitions in the South while strengthening Democratic congressional power. Whether it represents an enduring transformation will depend on whether the coalition that elected him remains politically engaged beyond the extraordinary circumstances of 2026.