With no small sense of the dramatic moment, Maine Senator Susan Collins waited until the final words of her more than 30-minute floor speech Friday to announce her intention to vote to confirm Brett Kavanaugh to the Supreme Court. Moments after she finished, West Virginia Democrat Joe Manchin used the less elevated platform of Twitter to say that he, too, will vote to confirm.

This likely means the Senate will vote Saturday in favor of Judge Kavanaugh’s confirmation. We say “likely” because rarely has the famous Yogi Berra...