The president took to social media on Friday and Saturday to criticize the choice of Navi Pillay and disparage the Norwegian Nobel Committee.

© Haiyun Jiang/The New York Times

Navi Pillay, who won this year’s Nobel Peace Prize, fought racism in South Africa, shaping her international career as a judge and advocate for justice and human rights.

© Daniel Karmann/Dpa, via Daniel Karmann/Dpa Via Ap