Ohio Sen. Rob Portman invoked Trump’s ubiquitous Twitter feed in signaling his approval for the Republican presidential candidate’s get-tough-on-China trade policy. The former U.S. Trade Representative has taken a defensive stance on trade, including opposition to the TPP, as he tries to retain his seat in a state not too fond of free-trade agreements. [Adam…

PRINCETON, N.J. — More than four in 10 Americans say they don’t know enough to say whether the U.S. should end its participation in free trade deals such as the North American Free Trade Agreement (NAFTA) and the Trans-Pacific Partnership (TPP). Among Americans who do have an opinion, 28% favor withdrawing from trade treaties, and…