President Obama questions the label of "populist" being attached to presumptive Republican presidential nominee Donald Trump. Obama spoke at a joint press conference Wednesday with Canadian Prime Minister Justin Trudeau and Mexican President Enrique Peña Nieto. "Now, somebody else who has never shown any regard for workers, has never fought on behalf of social justice issues, or making sure that poor kids are getting a decent shot at life or have health care," Obama said. "In fact, have worked against economic opportunity for workers and ordinary people." "They don't suddenly become a populist because they say something controversial in order to win votes. That's not the measure of populism. That's nativism. Or xenaphobia. Or worse. Just cynicism," Obama said. "So I would just advise everybody be careful about suddenly attributing to whoever pops up at a time of economic anxiety the label that they're populist," Obama warned.