The Latest: 2.6 million votes remain in California primary

California Secretary of State says nearly 2.6 million ballots still to be counted in California's presidential primary election.

Secretary of State Alex Padilla and other election observers say there are likely at least 2 million votes still to be counted from California's presidential primary election.

The remaining ballots are unlikely to swing Democratic nominee Hillary Clinton's win in the nation's most populous state.

Experts say voter participation likely didn't live up to a record number of registrations, partly because presidential primaries were settled.