Kenya’s 2017 election followed a predictable script. Until it didn’t. Incumbent Uhuru Kenyatta faced longtime rival Raila Odinga. Kenyatta won the August election by 10 percentage points, or 1.4 million votes. Odinga alleged fraud and petitioned the Supreme Court. Violence spread through the country. Dozens were killed. Kenyatta was poised to begin a second term. Then,…