I’ve said it more times than I can remember, which is that I’m wrong far more frequently than I am right.

My political prognostication skill has been exposed for what it is: shaky . . . at best.

Thus, I am prepared to acknowledge how wrong I’ve been about the current campaign for the presidency. My wrongness tracks along both parties’ trails.

First, the Republicans.

Donald J. Trump’s candidacy has withstood the candidate’s own serious shortcomings as a presidential aspirant, let alone his actual ability to govern.

Never in a zillion years did I think he’d still be in this campaign — let alone leading the GOP gaggle of candidates — after the countless insults he has hurled along the way.

Sen. John McCain’s valor during the Vietnam War doesn’t make him a hero? The ridiculous back/forth with broadcast journalist Megyn Kelly during the first presidential debate? His assertion that he’ll build a wall along our southern border and force Mexico to pay for it? His revealing Sen. Lindsey Graham’s cell phone number? His proposal to ban all Muslims from entering the United States? His assertion that he witnessed “thousands of Muslims cheering” the collapse of the World Trade Center on 9/11?

OK, I’ve left some of ’em out.

Despite all that, this guy continues to lead the pack.

Anger among GOP voters? That’s what is moving this man forward? If that is the case, then the Republican Party “base” is lost its sanity.

During President Obama’s State of the Union speech, I tried to imagine Donald Trump standing at that lectern offering high-minded, soaring rhetoric designed to lay the groundwork for how he intends to govern. Imagine him as well standing on the steps of the U.S. Capitol next January offering his inaugural speech to the nation as its 45th president.

All I hear coming from this guy are blustering, blistering insults.

Is that really what we want in the next president of the United States? Our head of state? Our commander in chief?

Now for the Democrats.

I once thought Hillary Rodham Clinton’s nomination was a shoo-in. She had it locked up. Nothing, or no one, would derail the Hillary Express on its way to the nomination and to the White House.

Then came Bernie Sanders, the democratic socialist with a campaign theme that has resonated with his party’s base. Break up the big banks, de-fang the Wall Street power brokers, spread the wealth around, lift up everyone’s wages and reduce the income gap between the very rich and the rest of the country.

Republicans have made a lot of hay over Benghazi, which has become a form of political shorthand that means: Clinton lied about what she knew about the attack on the U.S. consulate in that Libyan city. There’s a congressional select committee that’s still looking for something to torpedo Clinton’s presidential campaign.

Meanwhile, Sanders — the independent U.S. senator from Vermont — is drawing huge, enthusiastic crowds. He’s ahead by a good bit in New Hampshire, the site of the nation’s first primary vote and is now virtually tied with Clinton in Iowa, which is about to kick off the voting with its caucuses.

Do I believe Hillary Clinton will be denied the nomination? No. But it sure ain’t the coronation I thought it would be when this campaign began.

Let me add, too, that I do not believe Donald Trump will be the Republican nominee. I have some faith — although it’s been hammered — that the Republican Party brass comprises reasonable, intelligent and sane men and women who understand the consequences of nominating someone whose main skill lies in his ability to insult anyone who disagrees with him.

I don’t like acknowledging how wrong I have been.

Still, I feel better now for saying so out loud.