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MEET MIKE

Mike Thompson represents California's 4th Congressional District. The district includes all or parts of Lake, Napa, Solano, Sonoma, and Yolo Counties. Thompson is a member of the House Committee on Ways and Means where he serves as Ranking Member of the Subcommittee on Tax and serves as a senior member of the Health Subcommittee.

He is a member of the powerful House Committee on Ways and Means.

Constituent Stat View
$24,350,410
Money recovered
11
Bills signed into law
178,085
Letters sent
4,036
Cases resolved
29
Town Halls

LATEST NEWS

Latest News
February 28, 2026

Washington, D.C. – Rep. Mike Thompson (CA-04) released the following statement today in response to the President’s strikes against Iran:

“In the dead of night, President Trump started an unauthorized, unconstitutional war with Iran. As a combat veteran, I know the terrible realities of war and I am deeply opposed to any unprovoked strikes carried out without Congressional authorization — authorization that is explicitly required by our constitution.

Issues:Defense

February 27, 2026

Sonoma, CA – Today, Rep. Mike Thompson (CA-04) announced that he has helped secure $2,496,686.63 in federal grant funding from the National Fish and Wildlife Foundation for the Sonoma Ecology Center to advance their floodplain restoration project in Sonoma Creek. This investment will support work at three high-priority restoration sites in Glen Ellen to help reduce flood risk for local communities while restoring critical habitat for steelhead and other threatened species.


February 25, 2026

Woodland, CA – Wednesday, Rep. Mike Thompson (CA-04) was joined by Rep. John Garamendi (CA-08), House Committee on Agriculture member, Rep. Jim Costa (CA-21) for a roundtable meeting with local farmers, ranchers, processors, and ag leaders to discuss the ag community’s needs and how Congress can help deliver for them.