I know, I know, many of us have been saying it for a year: Donald Trump is not presidential material. He can't win. He is a disaster for the country and for the GOP.

Here is what I wrote in this space a year ago last July: Now, seriously, does anyone other than "The Donald" truly believe his fame and fortune are going to get him anywhere in a Republican presidential primary, let alone a general election?

His candidacy has been a joke from the start. He makes great copy, but so did Jack the Ripper.

Hmm ... was I just a tad off?

But I closed that piece a year ago by writing: Trump could be a has-been or he could be a true albatross around the neck of the Republicans. My guess is the former, but what a wild year it would be if it turned out to be the latter!

Well, it's been beyond a wild year. And it ain't over yet. Every day Trump makes "great copy" – of course it depends on what the meaning of "great" is! No question, he has drained all the oxygen not just out of the room but off the planet since descending that escalator at Trump Tower.

The unpredictability, the outrageous statements, the tweets, the attacks and the proverbial anger have dominated the news cycle for months. Sadly, much of it was left unchallenged, either by fellow candidates or the press, until it was too late to deny him the nomination.

Now, Trump is unraveling more and more each day. His core supporters may love it, but the country, including his own party, is growing weary. Even Chris Christie's senior aide is voting for Clinton, as is Meg Whitman and Republican Rep. Richard Hanna of New York. Trump refuses to back Sen. John McCain and Speaker Paul Ryan. One of Trump's strongest backers, Newt Gingrich, declares Trump "unacceptable" at least for the moment, while Mike Pence "strongly endorses" Ryan, contradicting his boss.

There was a point when Republicans thought Trump would get serious, take briefings on issues, read speeches carefully prepared and on message and finally professionalize his campaign. Every time there was an indication that might happen, and they had a ray of hope, Trump would go off the reservation and become even more insulting.

On Tuesday, he couldn't even manage to figure out how to deal with a crying baby, finally banishing it from the hall. You never know what he will say – Russia won't go into Ukraine; women who have abortions should be prosecuted; we could renegotiate what we owe Americans who hold savings bonds; no need to defend NATO countries; Japan and South Korea should have nuclear weapons; and, of course, the infamous wall, banning of Muslims and voiding trade agreements.

No slight is too small for him to unleash a thermonuclear bomb of anger on the perpetrator. No criticism too minor for him to fire a howitzer of invectives.

Michael Bloomberg mentioned the elephant in the room by urging that America elect a "sane, competent" person as president. He said what many have only skirted: that with all of Trump's ego, his narcissism, his bombast, his P.T. Barnum act, at the heart of it is someone who isn't playing with a full deck. To be blunt, there is something seriously wrong with a person who behaves the way Trump does. This is beyond politics or candidates or people with large personalities or egos; this is someone who does not have the constitution to lead our country.

So, in my view, what we are watching before our eyes is the unveiling and unraveling of Donald Trump. And it is not pretty. It is not logical; it is not rational; it is not, in a word, normal. More and more Republicans will speak out and try their very best to get the presidential campaign of 2016 behind them. Some will try and save their own skin, but most, I suspect, will see this as part and parcel of saving the country from the wrath of Trump.

Should they convince him to give up the nomination for president, an unlikely possibility, chaos would ensue within the Republican Party and across the country. Unprecedented. Unpredictable. Untoward. Not unlike the Trump candidacy itself.