Microsoft co-founder Bill Gates once again topped the Forbes magazine list of the world’s richest billionaires, while US President Donald Trump slipped more than 200 spots, the magazine said on Monday. Gates, whose wealth is estimated at $86 billion, led the list for the fourth straight year. He was followed by Berkshire Hathaway chief Warren Buffett among the top 10 billionaires, a group heavily dominated by Americans, many of whom […]