Washington (CNN) - Massachusetts Sen. Elizabeth Warren on Saturday called for US Immigration and Customs Enforcement to be replaced with an agency that reflects America's morality and "that works," joining the growing chorus of Democrats who have called for the agency to be scrapped. "The President's deeply immoral actions have made it obvious -- we need to rebuild our immigration system from top to bottom, starting by replacing ICE with something that reflects our morality and that works," Warren said at an immigration protest against family separations in Boston, Massachusetts, which was among hundreds of marches, protests and rallies taking...