Last week, a bipartisan delegation of legislators went to California to meet with big tech companies. The visit was led by Rep. Mike Gallagher (R-Wisc.) who chairs the House of Representatives Select Committee on the Chinese Communist Party. Their meetings with Apple, Microsoft and other industry heavies focused on trade, intellectual property, technology and related issues. Some of my more cynical readers might scoff that legislators should not be hanging out in Hollywood. Others might cheer their absence from the Capitol, which leaves them unable to pass any more meddlesome laws. But based on my 20 years of Congress-watching, I...