Parliament will vote September 7 on a motion of self-dissolution which could spark an October general election, Speaker of Poland's lower house of parliament Ludwik Dorn told reporters in Warsaw Tuesday. Under Poland's constitution a motion of self-dissolution is passed by a two-thirds majority, or 307 legislators, in the 460-seat lower house. An early election must be held within 45 days of the passage of such a motion, according to the constitution. Having failed to build a stable majority coalition and apparently bent on sparking an election, Poland's right-wing Law and Justice (PiS) party Prime Minister Jaroslaw Kaczynski has vowed to submit his minority government's resignation should parliament fail to dissolve itself, according to DPA.