[Atlantic Council] Last week, the thirty-sixth Africa Union (AU) summit marked a fresh beginning with a new chair, Comoros President Azali Assoumani, who will face several challenges as the bloc seeks to chart a new course for Africa at a time when the political scene could see a significant shift. According to the electoral calendar, six presidential elections will take place in 2023, with Nigeria in February, Sierra Leone in June, Liberia in October, Madagascar in November, the Democratic Republic of Congo in December, and