 140 members are elected in multi-seat constituencies, up to six members are chosen by proportional representation to represent Croatians living abroad and five members represent ethnic and national communities or minorities.The two largest political parties in Croatia are the Croatian Democratic Union (HDZ) and the Social Democratic Party of Croatia (SDP).The last parliamentary election was held on 11 September 2016 in Croatia and on 10 and 11 September 2016 abroad.