By Vassia Barba & Fiona Leishman Donald Trump might have dominated Super Tuesday but the disgraced former president sounded far from celebratory during a bleak victory speech, warning America is “dying” as “the world is laughing”. After sweeping up almost every state primary vote, the Republican frontrunner painted a dismal picture of what he thought the nation’s future would be under President Joe Biden’s potential re-election during a victory party at his Mar-a-Lago estate in Palm Beach, Florida. “Our cities are choking to death. Our states are dying. And frankly, our country is dying, and w…