Democrat Janelle Bynum has defeated incumbent Republican U.S. Rep. Lori Chavez-DeRemer and will give Oregon a 5-1 Democratic majority in Congress, the third time she has beaten her Republican rival in an election in less than a decade.

Democrat Janelle Bynum wins election to U.S. House in Oregon's 5th Congressional District, beating incumbent Lori Chavez-DeRemer

State Representative Janelle Bynum, a Democrat and the first Black woman elected to represent Oregon in Congress, ousted the freshman Republican Lori Chavez-DeRemer.

Democrat Janelle Bynum has flipped Oregon’s 5th Congressional District. The U.S. House race was one of the country’s most competitive and viewed by The Cook Political Report as a toss up, meaning either party had a good chance of winning.

Bynum, a three-term state legislator, flipped back a congressional seat that Democrats had previously held for years.

Democratic state lawmaker Janelle Bynum beat Republican incumbent U.S. Rep. Lori Chavez-DeRemer to represent Oregon's 5th Congressional District, per the Associated Press. Why it matters: Bynum's win flips the swing district back to blue and adds another Democratic seat to the U.