The Kenyan Supreme Court nullified on Friday the re-election of President Uhuru Kenyatta last month, ordering a new vote to be held within 60 days after a stunning decision that found that the election was tainted by irregularities. The Aug. 8 election which was conducted peacefully, was thought to be Kenya’s freest yet and was largely praised by international observers. Yet, because the ruling might provoke violence, the authorities had also bolstered security in light of the contentious nature of the campaign, with tensions still running high and the country’s history of postelection clashes. The court sided with opposition figures, who had complained about election irregularities and raised questions about the fairness and transparency of the vote. A top election official in charge of voting technology was murdered about a week before the election, and although the casting of ballots went smoothly, their collation and electronic transmission were flawed, leading the opposition to assert that as many as seven million votes had been stolen.