Here we are as a most tumultuous year is about to head for the sunset of history.

Donald Trump is going to stand trial eventually in 2020. He says the House of Representatives impeachment of him is a sham, a hoax and a witch hunt. He declares that he has done nothing wrong.

However, he is continuing to deny the Senate any access to witnesses who, it would stand to reason if you believe the president, would offer testimony that is favorable to him.

I keep wondering: Is this the conduct of a man with nothing to hide, nothing to keep from public view, nothing that would change any Republican minds?

The House impeached Trump on charges that he abused the power of his office by seeking political help from a foreign government. He did so in a phone call with the Ukrainian president. The White House released a memo of that phone call. He says it as clear as can be, but he calls the phone call “perfect.”  The House also impeached him on obstruction of Congress. How does one dispute that, given that Trump has demanded that no key White House aides answer congressional subpoenas, denying Congress the ability to do its constitutional duties relating to oversight of the executive branch of government?

The president and his GOP allies say the evidence doesn’t stack up. I disagree with that view but that’s just my view.

I cannot grasp the notion of a president continuing to deny access to key witnesses if he is as innocent of wrongdoing as he insists.

I want this trial to be completed. I do not want a drawn-out extravaganza that will become a sideshow. I do want witnesses to testify. I also want there to be any additional evidence submitted that will enable senators to make a more clear-headed decision on whether the president stays in office.

The president says he’s innocent. The president’s actions are those of a guilty man.

Welcome to another tumultuous year.