Rod Rosenstein this week invoked an unusual defense to explain his slow-walking of documents to Congress. “They should understand by now that the Department of Justice is not going to be extorted,” Mr. Rosenstein said. “We’re going to do what’s required by the rule of law, and any kind of threats that anybody makes are not going to affect the way we do our job.”
The deputy attorney general was reacting to reports that some Republicans are drafting articles of impeachment against him if he doesn’t comply with subpoenas. His...