FILE - Democrat Adam Gray, a former State Assembly member, has pulled ahead in a narrow lead over Republican incumbent John Duarte in the California House District 22.

A late surge in votes has pushed a California Democrat into the lead in a congressional race, setting the party up to take three House seats away from sitting Republicans during an election year that otherwise has roundly rejected the liberal cause.

Democratic candidate Adam Gray pulled ahead of incumbent Republican U.S. Rep. John Duarte by 105 votes in a Tuesday evening vote tally for the 13th Congressional District, located in California’s Central Valley. Gray trailed Duarte in the three weeks of ballot drops since Election Day.

Gray is the third Democratic challenger to surpass a House Republican incumbent since........

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