A federal judge on Thursday sentenced a Libyan militant to more than 19 years in prison for his role in the 2012 Benghazi attacks that killed four Americans, including the U.S. ambassador. A jury convicted Mustafa al-Imam last year of conspiring to support the extremist militia that launched the fiery assaults on the U.S. compounds but deadlocked on 15 other counts. The attacks, aimed at killing American personnel, prompted a political fracas in which Republicans accused the Obama administration of a bungled response. Al-Imam was sentenced to a total of 236 months behind bars. He is the second militant convicted...