Seats projected by demographic reach and regional support each turn.
A single seat, decided on plurality. José Sarney took 11.8% against 11.8% for the nearest rival.
Why NORTE voters lean toward Hilário Coimbra over Andrea Silva. Each driver is signed: + = lift, − = drag. Drivers are relative within this list and only move the persuadable slice of each party's vote, so their real effect is small. Coattail rows are direct share tilts in %. A raw vote lead does not equal the sum of these bars.
Ceiling this cycle: at most 20.0% of Andrea Silva's vote can be persuaded across to Hilário Coimbra, and 20.0% of Hilário Coimbra's vote can be persuaded away. Registration lean sets the starting split and how hard a party is to move, not the final share. These drivers add up to 0.9 pts of that movable slice.