By Jove, he’s done it. Mayor Putz has found a lane that could take him all the way to the finish line in the 2020 presidential sweepstakes.

The worst mayor ever, or the W.O.A.T., (Worst Of All Times), is ready for his national close-up. Having sent New York into serious decline during his reign of error, he aims to take his talents to the White House.

Alas, among Bill de Blasio’s problems has been finding the right message. For months, he’s traipsed around the early-primary states, searching for an idea that is popular on the left and would set him apart in the crowded candidate field.

He could have run as a competent mayor — but that would have been a lie. He’s totally incompetent, as even casual visitors to New York discover as they wade through trash, snarled, chaotic traffic and surging homeless vagrants, many clearly deranged.

He could have run as an honest public official — but that would be false, too. As demonstrated by the endless accusations and substantial evidence, de Blasio has a thing for brazen pay-to-play schemes.

Another option was to run as a passionate progressive, as a mayor who rolls up his sleeves and puts in long, hard days delivering the nuts and bolts of local governance. The problem is that de Blasio is a human sloth, a late sleeper who can’t be bothered to get out of his SUV or even show up at City Hall many days.

So he had limited options, but fate, and his army of consultants, delivered a plausible message. He can let Bernie Sanders have the socialism lane and Elizabeth Warren can run as the national regulator of consumer affairs.

He won’t tangle directly with Kamala Harris, the former tough prosecutor with a change of heart, or with Pete Buttigieg, the brainy gay veteran.

As for Spartacus, God only knows what he has in mind, and ditto for whether Joe “Hamlet” Biden will ever make up his mind.

For now, de Blasio has seized an opening where others have wisely feared to tread. He’s testing the idea of running as the Green New Deal candidate.

It’s an approach guaranteed to win him national attention, if not an actual job.

Sure, he stole the name from Rep. Alexandria Ocasio-Cortez, but he gave her credit, so now the Green New Deal can be his main message.

Besides, he even, like, sounds, like, AOC. “Like we are dealing with a survival matter, we are dealing with a global crisis, and yet, you know, folks are trying to do what they always did,” he said during a TV interview Monday.

He also seemed to agree with her that we’ll all be dead in 12 years, insisting that “2030 has been projected as a crucial break point” unless we give up fossil fuels. Details are fuzzy, but what matters is that he used Earth Day to make an environmental splash before getting back into his security armada.

The mayor was speaking in defense of his latest harebrained idea: banning new glass and steel towers in New York. Well, as it turns out, the “banning” he touted isn’t quite accurate, it’s more about raising standards.

But “banning” sounds so resolute and is easy to understand. The no-compromise approach shows his heart is in the right place, and isn’t that all that matters with progressives?

Never mind what you’ve done or haven’t done. It’s what you say that counts.

And de Blasio says even the newest buildings are grossly energy-inefficient, adding in that interview, “You see them everywhere, all glass with a steel super structure that are just horrible for the environment. Remember the number-one cause of emissions in New York City is our buildings.”

He also included a punish-the-rich tone, saying those buildings belong to “the most profitable enterprises.”

Again, pesky facts get in the way. As my Post colleagues point out, many of the more recent glass-and-steel towers, including those at Hudson Yards cited by de Blasio, are certified LEED platinum — the Green Building Council’s highest designation.

But the best is not good enough for de Blasio. He’s demanding new buildings be purer than the driven snow.

In addition to borrowing the idea from Ocasio-Cortez, it looks as if the mayor is up to his old trick of watching which way the parade is going and jumping to the front.

Just last week, the City Council passed a measure to apply strict emissions caps on large, private buildings. It would force them to retrofit their utility systems within five years or get hit with large fines.

One developer, the Durst Organization, estimates that its Midtown Bank of America Tower, although certified as LEED platinum, still would face fines of $2.5 million if the retrofit measure becomes law.

Bet that it will, and de Blasio will sign it by ballyhooing his decision to tell architects and engineers how to do their jobs. He’s terrible at his own job, but loves to tell others how to do theirs.

He blithely presides over the largest high-tax city in a high-tax state where Democrats are increasingly radical and the anti-business tone that chased away Amazon is alarming many of the region’s largest providers of jobs.

In the midst of that crisis, de Blasio is proud to declare that it will now be more difficult and more expensive to build here.

So what if developers and job creators go elsewhere? Bill de Blasio is going to the White House.

In his mind.

Carranza off base

Here’s a new job that is tailor-made for schools Chancellor Richard Carranza.

USA Today reports that, on the 100th anniversary of Jackie Robinson’s birth, African-American players make up only 7.7 percent of major-league rosters. The 68 black players scattered across 30 teams are less than half the number in 1989, the paper reports.

I nominate Carranza for baseball commissioner. As he is doing with top city schools, he can impose racial quotas so teams look like the population in their home cities.

Surely, fans everywhere will rush to buy expensive tickets to see social justice in action. If one team gets to be too good, Carranza can order them to stop keeping score.

And imagine the excitement of a World Series where nobody wins and everybody gets a participation trophy.

Moderation nation

My report about former Sen. Bob Kerrey warning Dems about “delusions” strikes reader Dave Morris. He writes, “I am a moderate Republican and a strong Trump supporter and hope more Democrats sign on to the Bob Kerrey train.

“Why? Not because it is good for Trump’s re-election campaign. It’s because a moderate Democratic Party is good for our nation. We need the parties to work together to get things done.”

Here ferti-lize-s dear old dad!

Headline: “Washington state to legalize human composting.”

Supporters say it’s safe to use in home gardens.

But what will the neighbors say when you plant Grandma?