The California state elections, June 2010 were held on June 8, 2010 and included five propositions and two special elections, one for a State Senate seat and the other for a State Assembly seat. Primary elections for all statewide offices, a seat to the United States Senate, all Californian seats to the House of Representatives, all of the seats of the State Assembly, and all even-numbered seats of the State Senate, along with the first round election for the nonpartisan Superintendent of Public Instruction were also held.