Canada’s newly appointed Prime Minister Mark Carney has called for an early election on April 28, framing his campaign as a battle to defend the nation’s sovereignty against U.S. President Donald Trump’s aggressive rhetoric and trade policies. Carney, a former central banker who recently replaced Justin Trudeau as leader of the centrist Liberal Party, announced Sunday that he had requested the dissolution of Parliament, moving elections forward from their originally scheduled date in October. “I’ve just requested that the governor general dissolve Parliament and call an election for April 28. She has agreed,” Carney declared in a televised address, referring…