CA-01: Democrat Mike McGuire challenges GOP Rep. Doug LaMalfa for new Prop. 50 seat

California Senate President Pro Tem Mike McGuire has officially launched his challenge to longtime Republican Rep. Doug LaMalfa in a congressional district drastically redrawn by Proposition 50.

The Santa Rosa Democrat, who will hit his 12-year term limit in the Legislature next year, was widely viewed once the new maps were drawn as a prospective challenger to LaMalfa, a rice farmer from Oroville who has represented the North State in Congress since 2013.

LaMalfa’s current district stretches from Siskiyou County and much of the Oregon-California border down through rural Shasta and Sutter Counties. Under the new voter-approved Prop. 50 maps, the district shifts south out of Modoc County and jogs westward to pick up parts of Sonoma County and McGuire’s home base of Santa Rosa.

McGuire will face heavy skepticism from some northern rural residents in the 1st Congressional District, who just a few years ago tried to secede from liberal California to form the conservative “state of Jefferson” with rural parts of southern Oregon.



https://calmatters.org/politics/2025/11/mcguire-1st-congressional-district/