Incumbent district attorneys in Sacramento, San Diego and Alameda counties led by large margins, according to unofficial results posted Wednesday by county elections offices. A fourth contested race, in Contra Costa County, appeared headed to a runoff in November if results remain the same.

The elections, typically local affairs, garnered national attention this year after a consortium of wealthy liberal donors, headlined by New York billionaire George Soros, pumped millions of dollars into the races.

In Sacramento County, Dist. Atty. Anne Marie Schubert, a prominent conservative voice in statewide politics, declared victory with 64% of the vote. Her Soros-backed challenger has yet to concede. In San Diego County, incumbent Summer Stephan won nearly two-thirds of the vote, according to the county elections office.