Business Insider Sen. Bernie Sanders has won the Nevada caucuses, Decision Desk HQ projects, with the vast majority of the final vote yet to be reported. Sanders has now officially swept the first three contests of the 2020 primary cycle, having tied with Pete Buttigieg in the Iowa caucuses and decisively winning the New Hampshire primary. Sanders' three victories give him huge momentum going into the February 29 South Carolina primary and the blockbuster March 3 Super Tuesday contests. Visit Business Insider's homepage for more stories. Sen.