NBC Bay Area's results page, which draws on the NBC News Decision Desk, lists Mark DeSaulnier as the projected winner in California's 10th Congressional District. Mark DeSaulnier had 69.1% (131,901 votes) to Jeff Frese's 30.9% (59,082).ABC7 shows the same totals and marks Mark DeSaulnier as the incumbent. It lists the district as covering parts of Alameda and Contra Costa counties.

NBC showed about 62% of the expected vote counted.

All results are unofficial election-night and early-morning counts as of Wednesday, Nov. 4. Counties keep counting mail and provisional ballots for days, and certification comes later, so margins can shift, especially in close contests.