(Reuters) The U.S. Supreme Court will hear a case on Monday that tests the boundaries of presidential powers, confronting the question of whether President Barack Obama exceeded his authority with unilateral action to spare millions of people in the country illegally from deportation. The case, one of the most consequential of the court’s current term that ends in June, pits Obama against 26 states led by Texas that filed suit to block his 2014 immigration […]