The 22nd Elections to the House of Councillors (第22回参議院議員通常選挙 Dainijūnikai Sangiingiin Tsūjōsenkyo) for the upper house of the legislature of Japan were held on July 11 2010. In the last election in 2007 the Liberal Democratic Party (LDP) lost its majority to the Democratic Party of Japan (DPJ) which managed to gain the largest margin since its formation in 1996. The House of Councillors is elected by halves to six-year terms.
