ANKARA - Turkey's main opposition Republican People's Party could consider withdrawing from parliament in protest at irregularities in Sunday's referendum, the party's spokeswoman was quoted by Hurriyet daily as saying."We don't recognize the referendum result," Selin Sayek Boke said. "There should be no doubt that we will exercise all our democratic rights against it."Boke said the referendum should be held again because its legitimacy was being questioned both in Turkey and internationally.The referendum called to replace Turkey's parliamentary democracy with an all-powerful presidency and may see Erdogan in office until at least 2029, in the most radical change to the country's political system in its modern history.Relations between Turkey and Europe hit a low during the referendum campaign when EU countries, including Germany and the Netherlands, barred Turkish ministers from holding rallies in support of the changes. Erdogan called the moves "Nazi acts" and said Turkey could reconsider ties with the European Union after many years of seeking EU membership.