I have previously criticized Sen. Richard Blumenthal, D-Conn., for his almost unrivaled advocacy of censorship and speech controls. Blumenthal previously threatened social media companies not to “backslide” in censoring opposing views. Now, Blumenthal is taking up the cudgel of court packing with not so subtle threats to conservative justices that, if they do not vote with their liberal colleagues, the Court may be fundamentally altered. He is not alone in such reckless and coercive rhetoric. Blumenthal told The Hill: “It will inevitably fuel and drive an effort to expand the Supreme Court if this activist majority betrays fundamental constitutional principles....