Former U.S. President Donald Trump dominates the GOP Super Tuesday races. NBC News projects he has won almost all of the 15 states voting in the primary contest. Wall Street stumbles for a second straight day with tech stocks weighing. The Dow is down ahead of Federal reserve Chairman Jerome Powell’s testimony on Capitol Hill. We are live in Westminster ahead of Chancellor Jeremy Hunt’s UK budget later today. Personal tax cuts set to top the agenda. And in IPO news, Swiss-American dermatology company Galderma plans to list in Zurich, aiming to raise $2.3bn.