State Sen. Mark DeSaulnier, a Democrat vying for California’s newly open 11th District, will announce Wednesday the endorsement of California Rep. Jared Huffman, according to a release provided first to CQ Roll Call.

Huffman’s endorsement comes two days after Democratic Rep. George Miller announced his retirement. DeSaulnier announced his candidacy for the seat within hours.

The endorsement is part of DeSaulnier’s effort to coalesce major Democratic support before others can enter the race. Fellow Democrats mentioned as potential candidates include state Assemblywomen Joan Buchanan and Susan Bonilla.

The top-two primary is scheduled for June 3. The filing deadline is March 7.