Mitt Romney is back, offering to share the sage political wisdom that won him the White House in 2012.

Oh, wait. President Obama beat him — despite a sagging economy and terrible approval ratings. Indeed, Obama became the first guy ever to win a second term in the White House despite drawing fewer votes than the first time round.

More than 3 million fewer — while Mitt added only 1 million to John McCain’s disastrous 2008 total.

Romney actually popped back in the news half a year ago — when he (reluctantly) opted out of the 2016 race because he figured Jeb Bush had a better shot.

Anyway, on Thursday, Romney speaks at the University of Utah on “the state of the 2016 presidential race.” By all accounts, it’s a bid to rally the anti-Trump cause and set the agenda for that evening’s GOP debate.

Because a one-term governor of Massachusetts — the author of RomneyCare, the model for ObamaCare — is the obvious guy to save the Republican Party.

He’s definitely gunning for Trump — his opening salvo came last week when he suggested there might be a “bombshell” in Trump’s tax returns.

(Hey, at least Mitt’s learned something: That’s the same shot-in-the-dark cheap shot Sen. Harry Reid tossed at Romney for months back in 2012.)

In fact — as Utah’s Sen. Orrin Hatch said outright to CNN — it looks like Romney’s aiming for a deadlocked GOP convention that would then nominate . . . him.

Because he hasn’t led Republicans to enough disasters.

Just go away, Mitt. Just go away.