Poland may be heading towards an early general election after two years of corruption scandals stripped the ex-Communist government of its majority. Prime Minister Marek Belka has asked parliament to dissolve itself in a debate in its lower chamber on a motion to call for his resignation. The ex-Communist SLD has enough seats to block any early end to the present legislature, but pressure on them has been increased by the formation of a new centrist Democratic party.It was formed on Sunday, and Belka has said he wants to join it, as he is frustrated by the SLD’s lack of progress on a health care shakeup, and fiscal reforms designed to allow Poland to join the euro single currency. Despite economic growth electors are unhappy at persistently high unemployment, and the opposition has been calling for early elections to end the political stalemate. Opinion polls suggest the SLD and other leftist parties may be badly beaten in the next poll by centre-right groupings that have formed from the anti-Communist Solidarity movement.