Ahead of the Republican National Convention this week, President Trump’s campaign is highlighting administration policies it says have advanced the decoupling of the U.S. and Chinese economies, releasing a list of second-term goals that include a further loosening of economic ties. The 50-point bulleted list describing the campaign’s agenda for a second term includes a section on ending the U.S.’ “reliance on China.” It makes five campaign promises, beginning with a pledge to “bring back 1 million manufacturing jobs from...