He is the son of Jomo Kenyatta, Kenya's first President, and his fourth wife Mama Ngina Kenyatta. Uhuru was re-elected for a second term in the August 2017 general election, winning 54% of the popular vote. The win was formally declared on national television by the Chairman of the Independent Electoral and Boundaries Commission Wafula Chebukati. However, Uhuru's election was successfully challenged in the Supreme Court of Kenya by his main competitor, Raila Odinga. On 1 September 2017, the court declared the election invalid and ordered a new presidential election to take place within 60 days from the day of the ruling. A new presidential election was held on 26 October, which he won, with 39% participation due to voter fatigue, voter apathy and being boycotted by the opposition.