On 14 April 2007, an estimated 300,000 people marched in Ankara to protest against the possible candidacy of Erdoğan in the 2007 presidential election, afraid that if elected as president, he would alter the secular nature of the Turkish state. Erdoğan announced on 24 April 2007 that the party had nominated Abdullah Gül as the AKP candidate in the presidential election. The protests continued over the next several weeks, with over one million people reported to have turned out at a 29 April rally in Istanbul, tens of thousands at separate protests on 4 May in Manisa and Çanakkale, and one million in İzmir on 13 May.