[1] Senate President: Peter Courtney (D–11 Salem) President Pro Tempore: Laurie Monnes Anderson (D–25 Gresham) Majority Leader: Ginny Burdick (D–18 Portland) until May 22, 2020; Rob Wagner (D-19 Lake Oswego) after[5] Minority Leader: Herman Baertschiger Jr. (R-2 Grants Pass) In May 2019, Republican state senators refused to attend senate sessions for four days, opposing a $2 billion tax package for K-12 schools.

Their aim was to prevent a vote on a cap-and-trade proposal, House Bill 2020 that would dramatically lower greenhouse gas emissions by 2050 to combat climate change.

In response, Republican Oregon Senator Brian Boquist said: "Send bachelors and come heavily armed.

In August 2019 Governor Brown considered calling a special session to address the impacts of recent death penalty legislation, but declined to do so when it became clear that the House of Representatives lacked the votes to ensure passage.

[19] Based on the results of the 2018 elections, the Oregon House of Representatives is composed of 38 Democrats and 22 Republicans.