President-elect Donald Trump on Tuesday chose trade lawyer Jamieson Greer as his new U.S. trade representative, elevating a key veteran of his first-term trade war against China to execute a sweeping tariff agenda that promises to upend global trade.

Jamieson Greer, Donald Trump’s pick for Trade Representative, is ready to do what many American leaders have only whispered: push for a complete economic break-up with China. He sees Beijing as a long-term threat,