Democrats are eagerly awaiting the release of the Mueller report, but it could actually turn out to be an early campaign gift to President Trump — one that helps him get re-elected.

The results of special counsel Robert Mueller’s long-awaited report are unlikely to contain an undisputed bombshell that blows up Trump’s presidency, and that may turn out to be a boon to Trump’s 2020 chances.

Don’t forget: the investigation was initially designed to probe whether Trump or his campaign colluded with Russia to influence the 2016 election, and that’s a high bar to reach.

Mueller can prosecute as many of Trump’s former campaign aides as he wants on unrelated charges, it won’t get Democrats the ultimate goal they want — proof that Trump is treasonous.

Trump may be damaged by the Mueller report but as the old adage goes, what doesn’t kill him only makes him stronger.

Without evidence of collusion reaching the Oval Office, Trump and his loyal supporters can argue the probe really was a “hoax” perpetrated by Democrats and the fake news media.

The president’s boosters will stand by him and most Republican lawmakers likely will follow suit, making it impossible for Democrats to remove Trump from office.

So instead of turning into a weapon that keeps Trump from a second term, the report would become a rallying cry for Republicans in 2020. There are already signs that the public is becoming weary of the Mueller investigation.

A new poll by Suffolk University shows that 50 percent of voters now believe Trump’s contention that the investigation is a “witch hunt.” And if the investigation fails to show collusion, those numbers will only increase — boosting Trump’s chances of staying in office.

Even worse for Democrats, the poll showed less than 30 percent of voters say they have a lot of trust that Mueller’s investigation is fair and accurate.

That number is significant because it means most Americans even now have little trust in Mueller, and that judgment could color how they view the final report when it’s released.

The poll also showed that just 28 percent of Americans believe House Democrats should seriously consider proceeding with impeachment. That number has consistently declined over the last several months, and may be the reason why House Speaker Nancy Pelosi has tried to tamp down talk of impeachment.

Pelosi also may be reading the tea leaves of Mueller’s soon-to-be-released report, concluding that impeachment would be a waste of time without strong evidence of collusion.