NEW : Some in Papandreou 's party say a national unity government is needed . PM George Papandreou faces a confidence vote late November . The main opposition party calls for him to resign and for snap elections . Greece has to accept tough bailout measures if it wants to stay in the eurozone .
NEW : Some in Papandreou 's party say a national unity government is needed . PM George Papandreou faces a confidence vote late Friday . The main opposition leader calls for him to resign and for snap elections . Greece has to accept tough bailout terms if it wants to stay in the eurozone .