Oregon Legislative Assembly
Legislative branch of the state government of Oregon
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| 2025 | Commencement of the 83rd Assembly with 18 Democratic and 12 Republican senators, returning to a previous composition pattern. |
| 2023 | Rob Wagner becomes Senate President, representing District 19 (Lake Oswego). |
| 2023 | Daniel Bonham becomes Minority Leader, representing District 26 (The Dalles). |
| 2023 | Start of the 82nd Assembly with 17 Democratic senators, 11 Republican senators, and 1 from each of Independent Republican and Independent Party. |
| 2023 | Kathleen Taylor becomes Majority Leader, representing District 21 (Portland). |
| 2023 | The 82nd Oregon Legislative Assembly begins its regular session, which will run from 2023 to 2025. |
| May 2023 | Republican senators conducted a six-week legislative walkout during the 82nd Assembly, which became the longest walkout in Oregon State Senate history. |
| May 2023 | Republican senators conducted the longest legislative walkout in Oregon's history, lasting six weeks during the 82nd Assembly in May and June, effectively blocking legislative proceedings. |
| 2022 | Oregon Ballot Measure 113 was passed to disqualify legislators with ten unexcused absences from serving in the legislature following their current term, addressing repeated legislative walkouts. |
| April 2021 | Further composition changes in the 81st Assembly, with 10 Democratic senators and 1 Republican senator. |
| January 15 2021 | Oregon State Senate composition changed during the Begin 81st Assembly, with 11 members present and a shift in party representation. |
| 2019 | Beginning of the 80th Assembly with 18 Democratic and 12 Republican senators. |
| 2017 | Start of the 79th Assembly with 17 Democratic and 13 Republican senators. |
| 2015 | Commencement of the 78th Assembly with 18 Democratic and 12 Republican senators. |
| 2013 | Beginning of the 77th Assembly, continuing with 16 Democratic and 14 Republican senators. |
| 2011 | Start of the 76th Assembly with 16 Democratic and 14 Republican senators, maintaining a total of 30 members. |
| 2010 | End of the 75th Assembly, with 18 Democratic and 12 Republican senators, totaling 30 members. |
This contents of the box above is based on material from the Wikipedia article Oregon State Senate, which is released under the Creative Commons Attribution-ShareAlike 4.0 International License.