High WTI crude prices near $103 per barrel as of November 1, 2026, driven by the Iran conflict and supply disruptions, have elevated energy costs and become a central factor in 2026 Senate races. Traders view sustained levels above $80 as amplifying voter frustration with Republican-backed policies, particularly in heating-oil-dependent states like Maine and competitive contests in Texas, Ohio, and Iowa where diesel and gasoline prices have risen sharply year-over-year. This dynamic has contributed to Democratic leads in forecasts, with models assigning them roughly 65-75% odds of netting the four seats needed to flip the chamber from the current 53-47 Republican majority ahead of the November 3 election. Recent polling shifts and generic ballot advantages for Democrats reflect how these macroeconomic pressures interact with candidate positioning on energy independence and tariffs.