Robert Lighthizer, a veteran trade negotiator and sometime free-trade skeptic, became Donald Trump’s most senior trade official. Unlike the former president and his director of trade and manufacturing policy, Peter Navarro, Lighthizer is not now fending off prosecution. He did not pique the interest of the January 6 committee. But Trump and Lighthizer are still members of a mutual admiration society. No Free Trade, Lighthizer’s first book, comes with Trump’s endorsement. It is “a masterpiece that describes how my administration stood up to China and fought back against the globalists and communists that have been ripping off American workers for...