The moment he said it I thought, “Did the White House deliberate over this and conclude that calling for regime change was advisable? Or did Biden ad lib a line this fraught with danger?” We already have an answer. If you think he’s been too weak in his response to Russia, here’s some good news, I guess. It doesn’t get any tougher (rhetorically) than ending a speech in Warsaw by calling for Putin to be deposed. His speech today was shot through with bravado (“Don’t even think about moving on one single inch of NATO territory!”) but the line about...