President Trump’s December 17, 2019 letter to House Speaker Nancy Pelosi,
sent the day before the impeachment vote, included:
"I write to express my strongest and most powerful protest against the partisan impeachment crusade being pursued by the Democrats in the House of Representatives. This impeachment represents an unprecedented and unconstitutional abuse of power by Democrat Lawmakers, unequaled in nearly two and a half centuries of American legislative history.
The Articles of Impeachment introduced by the House Judiciary Committee are not recognizable under any standard of Constitutional theory, interpretation, or jurisprudence. They include no crimes, no misdemeanors, and no offenses whatsoever. You have cheapened the importance of the very ugly word, impeachment!
By proceeding with your invalid impeachment, you are violating your oaths of office, you are breaking your allegiance to the Constitution, and you are declaring open war on American Democracy…
...You are the ones interfering in America’s elections. You are the ones subverting America’s Democracy. You are the ones Obstructing Justice. You are the ones bringing pain and suffering to our Republic for your own selfish personal, political, and partisan gain…
... Any member of Congress who votes in support of impeachment – against every shred of truth, fact, evidence, and legal principle – is showing how deeply they revile the voters and how truly they detest America’s Constitutional order. Our Founders feared the tribalization of partisan politics, and you are bringing their worst fears to life.
Worse still, I have been deprived of basic Constitutional Due Process from the beginning of this impeachment scam right up until the present. I have been denied the most fundamental rights afforded by the Constitution, including the right to present evidence, to have my own counsel present, to confront accusers, and to call and cross-examine witnesses … "