**New Jersey holds a 59% implied probability of hosting the closer 2026 Senate race, reflecting trader assessment of polling stability in Montana versus structural factors in New Jersey.** In Montana’s open-seat contest, Republican Kurt Alme maintains consistent double-digit leads in recent surveys (typically 38-45% to independent Seth Bodnar’s 27-32% and Democrat Alani Bankhead’s 16-19%), with forecasts projecting a roughly 15-point Republican margin in a fragmented field that splits opposition support. New Jersey’s matchup pits incumbent Democrat Cory Booker against Republican Justin Murphy in a solidly Democratic state; while rated Safe or Solid Democratic with an expected margin near 19 points and no recent general-election polls available, the absence of a split opposition and New Jersey’s recent voting patterns create greater scope for a compressed result relative to Montana’s clearer polling trajectory. Both races carry non-competitive ratings from outlets such as Cook, Inside Elections, and Sabato’s Crystal Ball, yet the Montana data anchors expectations of a wider gap.