Delaware House 2026: Sarah McBride, Historic At-Large Seat
1 at-large seat · Sarah McBride (D) first transgender MC · Won 2024 with 56% · D+15 state · No credible R challenge · Biden's home state
Delaware At-Large Seat Overview
Delaware's At-Large Seat: Context and Significance
Sarah McBride: First Transgender Member of Congress
When Sarah McBride won Delaware's at-large House majority in November 2024, she became the first openly transgender person elected to the United States Congress. McBride defeated Republican John Whalen with approximately 56% of the vote in a state Biden had carried by 19 points in 2020. Her path to Congress ran through Delaware's State Senate, where she served three terms after winning in 2020 — becoming the first transgender state senator in U.S. history. McBride's election came in a national environment where Republicans had made anti-transgender legislation a central platform, making her victory symbolically significant beyond Delaware's small delegation. She previously served as national press secretary for the Human Rights Campaign and was the first transgender person to speak at a major party convention when she addressed the 2016 Democratic National Convention.
Biden's Home State: A Reliable Blue Small State
Delaware is one of the smallest states in the nation — its 1 million residents give it only one congressional district — but its political significance has been outsized due to its status as Joe Biden's home state. Delaware's economy is driven by corporate law (more Fortune 500 companies are incorporated in Delaware than anywhere else), financial services in Wilmington, agriculture in the southern counties, and chemical manufacturing along the Brandywine River. The state leans Democratic at roughly D+15 in presidential elections, driven by Wilmington's urban Black population, Newark's university community, and the educated suburban voters in New Castle County. Southern Delaware (Sussex County) is more conservative and rural but not large enough to overcome the northern counties. The at-large seat has been Democratic since Mike Castle (R) left to run for Senate in 2010.
One Seat, One Voice: At-Large States in Congress
Delaware is one of seven states with a single at-large congressional district. In these states, one representative speaks for the entire state's interests in the House, which creates different political dynamics than states with multiple districts. The at-large member cannot be gerrymandered against and must appeal to a statewide coalition rather than a narrowly drawn partisan constituency. In Delaware, this has historically meant the seat tracks closely with the state's overall presidential lean. Delaware's at-large members have included significant political figures: Mike Castle was considered one of the most effective moderate Republicans in the House during his tenure, and Lisa Blunt Rochester, who held the seat from 2017 to 2025 before moving to the Senate, was a rising Democratic leader who became the first Black woman elected to Congress from Delaware. McBride now carries that seat's legacy of firsts.
