The Biden administration should step up efforts to enforce the phase-one trade agreement its predecessor struck with China, a former Trump administration trade official told lawmakers on Wednesday. Jamieson Greer, who served as chief of staff to U.S. Trade Representative Robert Lighthizer during the Trump administration, testified before the House Judiciary courts, intellectual property and the internet subcommittee during a hearing titled “ Intellectual Property and Strategic Competition with China: Part I .” In his opening statement, Greer said the...