President Obama on Friday lashed out at critics within his own party as he accused fellow Democrats of deliberately distorting the potential impact of the sweeping new trade agreement he is negotiating with Asia and standing in the way of a modern competitive economy. With the same tone of disdain he usually reserves for his Republican adversaries, Mr. Obama said liberals who are fighting the new trade accord, the Trans-Pacific Partnership, were “just wrong” and, in terms of some of their claims, “making this stuff up.” If they oppose the deal, he said, they “must be satisfied with the status...