After boycotting the controversial 2016 presidential election, won by his former mentor Denis Sassou Nguesso, Mathias Dzon (73), finance minister between 1997 and 2002, will be a candidate in the March 2021 election, "for the good of the nation He therefore responded positively, on Saturday 21 November, to a request from the Alliance for the Republic and Democracy (ARD), an opposition platform, this time…