Of all the reputations in tatters now that Robert Mueller has exploded the Russian-collusion fantasy, Obama-era spy chiefs John Brennan and James Clapper stand out.

For the past two years, the men prominently insisted not only that President Trump had teamed up with Russian President Vladimir Putin to steal the 2016 election but that Trump was Putin’s pawn.

“I don’t know if I received bad information, but I think I suspected there was more than there actually was”: That was Brennan’s pathetic response to Mueller’s findings — after years when he regularly traded on his status as former CIA director to defame Trump.

“When the full extent of your venality, moral turpitude and political corruption becomes known, you will take your rightful place as a disgraced demagogue in the dustbin of history,” he tweeted at the president. Russia “may have something” on Trump, he told the world. Now he thinks he suspected he didn’t know as much as he’d thought?

Former Director of National Intelligence Clapper has yet to express even that much regret for his pointed comments, such as that ex-KGB officer Putin “knows how to handle an asset.”

These two weren’t average citizens: They spoke with the authority of having headed federal intel operations. Brennan even cited his training as an “intelligence professional” as the basis for his views.

By milking that status for brutal hits on Trump, they not only misled and divided the country, they damaged the credibility of the US intel community.

Of course, they were crossing the line while in office, running interference for President Barack Obama’s disastrous Iran deal and other policies.

But America’s top spooks are supposed to steer clear of politics completely once they leave office. By ignoring that rule (as well as basic honesty) for purely partisan ends, Clapper and Brennan violated their duty — despicably.