WASHINGTON (Reuters) -U.S. Supreme Court Justice Samuel Alito rejected on Wednesday requests by Democratic lawmakers to recuse himself from two cases - one on Donald Trump's bid for immunity from prosecution and the other on a charge involving the Capitol attack - after reports involving contentious flags flown outside his homes. Alito, in two letters sent to congressional Democrats, said the flags at issue were flown not by him but by his wife, who he said was exercising her right to free speec