The Palestinian Legislative Council passed a law in June 2005 (signed by Abbas on 13 August 2005), to increase the number of members from 88 to 132, with half to be elected using proportional representation and half by plurality-at-large voting in traditional constituencies.[4] The January 2005 presidential election was won by Abbas of Fatah, while the January 2006 legislative election was won by Hamas. In 2007, a Presidential decree abolished the constituency seats with all seats to be elected from a national list, and prohibited parties which did not acknowledge the PLO's right to represent the Palestinian people (specifically Hamas) from contesting the election.[5] An opinion poll suggested that a majority of Palestinians supported the change, while Hamas called it illegal.[6]