Simplify the following text for a Grade 12 native English-speaking person.
Original: After two weeks of speculation it was announced on June 10 that he would run as the lead candidate for The Left party ( Die Linke ) , a coalition of the Labor and Social Justice Party ( WASG ) , which is based in western Germany , and the Left Party .
Simplified: On 10 June , he said he would run as the lead candidate for the The Left Party . PDS ( Die Linkspartei ) , a coalition of the Electoral Alternative for Labor and Social Justice ( WASG ) , which is based in western Germany , and the Party of Democratic Socialism ( PDS ) , which was the successor to the East German communist party