U.S. Commerce Secretary Wilbur Ross said on Friday that he hopes to launch formal talks to renegotiate the North American Free Trade Agreement with Canada and Mexico in a little over three months, setting in motion a campaign promise made by President Donald Trump. During his election campaign, Trump threatened to pull out of NAFTA, which he views as damaging to U.S. workers, unless it was renegotiated to his liking and reduced the U.S. trade deficit with Mexico.