resident Donald Trump Monday launched a Labor Day Twitter attack against AFL-CIO President Richard Trumka after the powerful labor leader Sunday said the nation's unions won't have "any choice" but to block the "unenforceable" United States-Mexico-Canada trading deal. "Just watched AFL-CIO President Richard Trumka on @FoxNews and thought to myself how different he is on TV than he is when he is with me at the White House," the president tweeted. "Likes what we are doing until the cameras go on. We got robbed on Trade and everything else while his Dems just sat back and watched." "NAFTA is the...