Unified Republican control of the White House and both chambers of Congress has produced few vetoes, all sustained through party discipline, as seen in the January 2026 House votes that fell short of the two-thirds threshold on infrastructure measures. With narrow GOP majorities and limited legislative confrontation, broad bipartisan coalitions needed for overrides remain absent. Midterm forecasts point to possible Democratic gains in November, yet any shift would affect only the final weeks of 2026 or the subsequent Congress, and historical patterns show overrides are rare absent divided government. Traders reflect this consensus in the elevated implied probability for no successful override by year-end.