Dear Senators Stabenow and Peters:

Jurors determine guilt or innocence under the law, not whether the law is constitutional. The courts make constitutional decisions. Nevertheless, forty-five of your Republican senate colleagues have taken the court’s powers and made them their own when they voted that it is unconstitutional to hold an impeachment trial for a president who is no longer in office.

It is important for our democracy that every senator vote on whether they believe the evidence prese...