House Judiciary Committee Chairman Jerrold Nadler has scheduled a vote Wednesday to hold Attorney General William P. Barr in contempt of Congress after he refused to provide an unredacted version of special counsel Robert Mueller’s report to Congress. Mr. Nadler and Mr. Barr have been sparring over what the Justice Department will provide to Congress beyond the redacted report that was publicly released last month. Mr. Barr missed a May 1 deadline for turning over the full report and all supporting evidence, and Mr. Nadler softened his demand to a less-redacted report and some of the supporting evidence Mr. Mueller...