Egyptian President Mohamed Morsi and the Muslim Brotherhood might want to put the celebration on hold. Though they’ve already declared Sunday’s referendum vote a win for their new Islamist-backed constitution, judges are answering calls for an investigation into accusations of voter irregularities. Morsi opponents, who argue that the contentious document is too Islamist and does not protect minority rights, also point out that, while the Muslim Brotherhood’s calculation that 64 percent voted in favor of the new constitution is true, only one third of Egypt’s 51 million eligible voters participated. Judges will announce an official outcome of the vote once they’ve conducted an investigation. Egyptians will likely have to wait until after Monday to find out the results.