Two Mexican ex-presidents compare Donald Trump to Adolf Hitler
Trump has accused Mexico of sending rapists and drug runners across the US border and has said he will make Mexicans pay for a wall on the border.
Republican presidential candidate Donald Trump speaks at a caucus night watch party at the Treasure Island Hotel & Casino on February 23, 2016 in Las Vegas, Nevada.(photo credit: ETHAN MILLER / GETTY IMAGES NORTH AMERICA / AFP)ByREUTERSUpdated: