As President Donald Trump sought to forge a delicate China trade deal on Thursday, lawmakers from both sides of Congress looked set to advance a bill that would give the U.S. greater power to block deals between American and Chinese companies that could risk national security.
The legislative initiative is part of a complicated effort to confront China on both economic and security issues, while also seeking Chinese cooperation on such matters as North Korea. On Thursday, Mr. Trump hosted Chinese Vice Premier Liu He as part...