- Chris Coons (D) seeks a 4th term — filed for the September 15, 2026 Democratic primary for the Class 2 seat he has held since 2010, winning Biden's former Senate seat by 16.6 pts against Christine O'Donnell.
- Delaware is rated Safe Democratic (Cook / Sabato) — Biden's home state has voted Democratic in every presidential election since 1992; Harris won it by ~13 pts in 2024.
- Republican field is weak: Michael Katz (former Democratic state senator who switched parties) and John Shulli (Army War College instructor) — neither considered a serious threat.
- Lisa Blunt Rochester (D) holds Delaware's other seat (Class 1, won 2024) — the state has not sent a Republican to the Senate since William Roth's 1994 win (he lost re-election to Tom Carper in 2000).
Delaware is rated Safe Democratic. Chris Coons has held this seat since 2010 and won his 2020 re-election by +19.6 pts. Biden won Delaware by ~19 pts in 2020; Harris won it by ~13 pts in 2024. No Republican has won a Delaware Senate seat since William Roth in 1994 — Roth lost re-election to Tom Carper in 2000. Coons has officially filed for the September 15, 2026 Democratic primary. See all 2026 Senate races →
Race Overview — Key Facts
Race Analysis
Delaware's Political Profile
Delaware is the First State — the first to ratify the Constitution — and also one of the most reliably Democratic states in federal elections. Despite its small size (the second-smallest state by area), Delaware has unique political characteristics. It is home to a disproportionate share of American corporations due to its business-friendly legal code, making corporate law and financial regulation significant policy concerns. The state's three counties have very different political profiles: New Castle County (Wilmington and suburbs) is heavily Democratic and drives statewide results; Kent County (capital Dover) is more rural and competitive; Sussex County (beach communities) trends Republican.
Joe Biden represented Delaware in the Senate for 36 years, and the state's political identity is deeply intertwined with Biden's career. Chris Coons, who won Biden's old Senate seat in 2010, is in many ways Biden's political heir in Delaware — he occupies the same Class 2 seat Biden held and shares Biden's bipartisan, foreign-policy-oriented brand. Coons has officially filed to run for a fourth term, with the Democratic primary set for September 15, 2026. Lisa Blunt Rochester, who won Delaware's other Senate seat (Class 1) in 2024, gives the state two Democratic senators for the first time in years.
Why the Race is Not Competitive
Delaware's structural Democratic advantage in federal elections is substantial. The state has not elected a Republican senator since William Roth last won in 1994 — Roth lost his 2000 re-election bid to Tom Carper, and Roth himself was a moderate Republican known for bipartisanship (the Roth IRA bears his name). The Delaware Republican Party has struggled to recruit credible candidates for statewide office. Republican challengers Michael Katz — a former Democratic state senator who switched parties — and John Shulli, an Army War College instructor, have not generated significant fundraising or polling momentum. With a presidential baseline of Biden +19 in 2020, even a significant national shift toward Republicans would leave Delaware comfortably in the Democratic column.
Coons himself is a relatively popular incumbent who has cultivated a bipartisan image and strong relationships across the aisle. His 2020 re-election margin of +19.6 points confirms that he runs roughly at the presidential baseline. No serious outside money has flowed into the race, and no major Republican figure has shown interest in challenging him. Cook Political Report and Sabato's Crystal Ball both rate Delaware Safe / Safe Democratic.
Video: Coons on Foreign Policy & Democracy — Munich Security Conference 2026
DW News — Senator Coons speaks on transatlantic trust and international alliances at the Munich Security Conference 2026.
Key Issues for Delaware Voters
Coons's signature issue. Transatlantic alliances, NATO, Ukraine support, and international development financing are his primary focus on the Foreign Relations Committee.
Delaware is the legal home to over half of all publicly traded U.S. companies. Corporate governance, SEC regulation, and business tax policy directly affect Delaware's economic identity.
Delaware's coastal location makes it particularly vulnerable to sea level rise and storm surge. Coons supports the Inflation Reduction Act's clean energy provisions and offshore wind development in the Mid-Atlantic.
Coons supports expanding the ACA and protecting Medicaid coverage in Delaware. The state's healthcare access challenges in its rural Sussex County communities are a persistent concern.
Coons has worked bipartisanly on criminal justice reform, including the First Step Act and subsequent sentencing reform efforts. Wilmington's public safety challenges make crime policy politically salient.
Delaware's historical manufacturing base (DuPont, Chrysler) has declined, but pharma and chemical manufacturing remain significant. Coons takes moderate positions on trade that reflect Delaware's business orientation.
Historical Results — Delaware Senate (Class 2)
2026 Senate Race Context & National Outlook
The 2026 midterm elections are taking place in an environment shaped by significant economic uncertainty. Trump's Liberation Day tariffs triggered a consumer confidence collapse and PCE inflation surged to 4.5% in Q1 2026. The Trump approval rating stands at 38.1% approve / 59.2% disapprove — among the lowest for any first-year president since modern polling began. The Generic Ballot shows Democrats with a consistent +6.0 advantage, a historically predictive indicator of significant House seat gains.
In the Senate, 33 Class 2 seats are up in 2026. Republicans must defend seats in Georgia, Iowa, North Carolina, Alaska, and Texas, while Democrats defend Nevada, New Hampshire, Michigan, Minnesota, and Virginia. Key battleground races that will determine Senate control include Georgia (Jon Ossoff, D), Iowa (open seat, Ernst retires), Nevada (Jacky Rosen, D), and Alaska (Lisa Murkowski, R). The full Senate map is at the Senate 2026 overview.
Issue-level polling context: The top issues driving 2026 are the economy and tariffs, healthcare, immigration, and Social Security. See the Battleground Tracker for the latest state-level polling and the Trump Policy Tracker for executive action context.
Frequently Asked Questions
Is Chris Coons running for re-election in Delaware in 2026?
Yes. Senator Chris Coons (D-DE) has officially filed for re-election to his Class 2 Senate seat, with the Democratic primary on September 15, 2026. Coons first won Biden's old seat in 2010 by defeating Tea Party Republican Christine O'Donnell (+16.6 pts) and has held it since, winning re-election in 2014 (+15 pts) and 2020 (+19.6 pts). Republican challengers are Michael Katz (former D state senator, party switcher) and John Shulli (Army War College instructor). Delaware is rated Safe Democratic.
Why is Delaware rated Safe Democratic in 2026?
Delaware is a reliably blue state in federal elections. Biden won his home state by ~19 points in 2020; Harris won it by ~13 points in 2024. The state has not elected a Republican to the U.S. Senate since William Roth last won in 1994 — Roth lost re-election to Tom Carper in 2000. Delaware's suburban Philadelphia corridor has trended strongly Democratic, and no credible Republican challenger has emerged for 2026.
What is Chris Coons known for in the Senate?
Coons is known for his bipartisan instincts, his work on foreign policy on the Senate Foreign Relations Committee, and his close relationship with former President Biden, who represented Delaware for 36 years. He has been a leading Democratic voice on transatlantic alliances, climate financing, and international development, while occasionally working across the aisle on criminal justice reform.
