Kenyans who boycotted a repeat presidential election voiced relief on Saturday after authorities indefinitely delayed further attempts to hold the vote in some opposition areas due to the risk of violence. But while the election board's decision stemmed the prospect of more clashes, it also pushed to the fore a new question: can President Uhuru Kenyatta be declared winner of a vote in which ballots were not cast in more than 20 of Kenya's 290 constituencies?