Botswana will head to the polls today, with President Mokgweetsi Masisi seeking a second term. He's facing challenges from three candidates, but analysts suggest the ruling Botswana Democratic Party (BDP) has the edge, helped by a fragmented opposition. Botswana, a nation of 2.3 million, is the world's top diamond producer by value, and has built relative prosperity on its diamond wealth. However, an economic downturn in the diamond market has strained revenues, sparking criticisms of BDP's long rule. Former president, Ian Khama sent a message for the people of Botswana, and Elvis Presslin spoke to Political analyst and social commentator in Botswana Kabo Ramasia