What happened?

Rep. Sarah McBride, the Democrat who holds Delaware's single U.S. House seat, is heading to a November general election after running unopposed in her party's primary. The Sept. 15 Democratic primary was canceled because no other Democrat entered the race. Republican Joseph Arminio won his party's primary and will face McBride on Nov. 3. [](#ngr-97512a5f-338b-4b24-9cd5-3cb103e74acf)

McBride's campaign reported $5.06 million in total receipts through Aug. 26, according to Federal Election Commission records. Among the Republicans who sought the nomination before Arminio prevailed, John J. Whalen III reported $1,589 in total receipts and Donyale Hall reported $779. Two other Republican contenders reported no receipts at all.

Why Does it Matter to Me?

Delaware has only one seat in the U.S. House, meaning every voter in the state has a direct stake in this race. Whoever wins will be the state's sole voice in the chamber that shapes federal spending, tax policy, and legislation touching health care, education, and labor.

McBride sits on the House Foreign Affairs Committee and the House Science, Space and Technology Committee. She has sponsored bills addressing worker protections, including the Flexible Leave Act and the Holiday Pay Act, as well as measures on artificial intelligence literacy and biotechnology education. Key issues in the race, according to the source data, include health care, artificial intelligence, education, and labor policy.

Both sides, now

What the data does show is a wide money gap: McBride's campaign banked more than $5 million, while her Republican opponent's fundraising figures were not reported in the available records.

Outside spending has been minimal. Two super PACs, Sierra Club Independent Action and GiveGreen United Action, each reported $10 in independent expenditures supporting McBride, for a combined $20. No outside spending opposing McBride appeared in the source data.

The Cook Political Report rates the race "Solid Democratic." The prediction market Kalshi showed contracts tied to a Democratic victory trading at a 99.79 percent market-implied probability as of Sept. 15.

What happens next?

Delaware voters will cast ballots on Nov. 3. The winner takes the state's at-large House seat for a two-year term. Between now and then, both campaigns can continue raising and spending money, and voters should expect candidate appearances and any debates the campaigns agree to hold.

---

This article was generated by AI pulling from data. Each article is edited by an editor for accuracy and clarity.

---

Spot something wrong? Report an issue with this article