President Pro Tempore: Warren G. Magnuson
Party Whips: Wesley L. Jones
Democratic Senatorial Campaign Committee Chair: Patty Murray
Standing Committee Chairs Since 1947:
- Appropriations: Warren G. Magnuson
- Commerce, Science and Transportation: Warren G. Magnuson
- Energy and Natural Resources: Henry M. Jackson
- Interior & Insular Affairs: Henry Jackson
- Interstate & Foreign Commerce: Warren Magnuson
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