“President Donald Trump’s personal involvement in a deal on U.S. chip sales in China highlights his ongoing determination to directly manage the American economy — an approach that is especially striking for a Republican president and could carry political and substantive risk,” the Washington Post reports.Said Obama adviser Jason Furman: “President Trump is playing a very unusual role in the economy for a president, and especially for someone who purports to believe in deregulation. Effectively this is very much akin to regulation, except done in a very ad hoc, unpredictable and improvisatory manner.”