Four-term Democratic state lawmaker Janelle Bynum won a seat in Congress and will be Oregon’s first Black representative.

Bynum defeated Republican Rep. Lori Chavez-DeRemer in the highly contested 5th Congressional District race. Vote tallies made public by Thursday evening showed no viable path for the incumbent to overcome Bynum’s lead.

Bynum leads Chavez-DeRemer 48% to 45% in current tallies.

The Oregonian/OregonLive analysis shows Bynum has won the seat because she already has a substantial lead — and far more votes remain to be tallied in the places where she’s drawn a substantial or overwhelming edge than from the strongholds where Chavez-DeRemer drew a nearly 2-to-1 edge.