House Speaker Nancy Pelosi is upset. She let her caucus impeach President Trump on dubious charges with a narrow partisan majority and without taking the time to gather evidence that she now believes must be heard in a Senate trial as it might convince a skeptical public. And now, huge surprise, the Republican Senate appears poised to send the resulting impeachment articles straight to the circular file.

As of Friday, Pelosi was still withholding the articles of impeachment from the Senate. She is making demands that the Senate trial be run in a particular way, even though the California Democrat is not a senator and has no constitutional role in shaping the trial.