U.S. Senator
September 15, 2026 · Delaware · Statewide · primary
How do we calculate vote impact?
Vote impact = representation (how much weight one vote carries here, the smaller the district's population, the higher the representation) + decisiveness (how likely this race is to be close, based on past results and number of candidates).
Representation: High · 86 out of 100
Smaller districts give each vote more weight, and this district is small for its type. About 1,021,191 people live here.
score = 100 × ln(largest population ÷ this district's) ÷ ln(largest ÷ smallest), rounded to 2 decimals = 100 × ln(39,287,377 ÷ 1,021,191) ÷ ln(39,287,377 ÷ 582,397) = 86.67, comparing all statewide districts nationwide (grades: 66+ high, 33+ average, otherwise low)
Decisiveness: Unknown
No past results for this contest yet.
High representation + unknown decisiveness → High vote impact.
Some data is missing, so this rating is based on partial information and capped at "High".
United States Senator is responsible for:
- Voting on federal laws, taxes, and the federal budget
- Approving or rejecting the president's nominees for judges and top officials
- Voting on whether to approve treaties with other countries
- Helping people in the state deal with federal agencies
Affected Areas: Environment and Public Health, Reduce Wealth Gap, Anti-Corruption, Government Efficiency, Healthcare Affordability, Immigration, Government Spending Reduction, Social Programs and Welfare, Gun Control, Women's Reproductive Rights, National Defense, Personal Income Tax Reduction, Foreign Trade, Data Privacy, Civil Rights, Corporate Accountability, Public Infrastructure, Peaceful Foreign Policy
Candidates
John Shulli
Republican · declared
John Shulli is a Republican candidate for U.S. Senate in Delaware. The Delaware Department of Elections lists him as a qualified Republican U.S. Senate candidate filed on February 19, 2026; FEC records list him as candidate S6DE00198 with principal campaign committee SHULLI FOR SENATE. His campaign biography describes him as a Delaware native, U.S. Army Reserve member, and U.S. Army War College graduate with more than 28 years of service and leadership assignments including Iraq planning, brigade command in Iowa, battalion command at Fort Stewart, U.S.-Russia talks in Geneva, and AI-data policy work at the Pentagon.
Records: National Defense 1 for, Social Programs and Welfare 1 for
Michael "Dr. Mike" Katz
Republican · declared
Michael S. Katz, who campaigns as Dr. Mike Katz, is a Republican candidate for U.S. Senate in Delaware. His campaign site describes him as a physician with more than 40 years in pediatric critical care anesthesiology, a business owner, and a former Delaware State Senator; the Delaware Department of Elections lists him as a qualified Republican U.S. Senate candidate filed on March 19, 2026.
Records: Anti-Corruption 2 for, Environment and Public Health 1 for
Election sources
Source: elections.delaware.gov
Source: elections.delaware.gov