Letter: Republicans will be burned by history

As details of Trump’s dealings with Ukraine have come to light, Republicans have set red lines on what they would consider to be impeachable offenses. However, once those lines are crossed they abandon the project of line drawing entirely.The constitutional scholar called by Republicans to testify before the House testified: “The use of military aid for a quid pro quo to investigate one’s political opponent, if proven, can be an impeachable offense.”If news of Bolton&rsqu