TONY BLAIR railed against Jeremy Corbyn yesterday for “telling it like it is” — but the warmongering has-been was abruptly derided as having “nothing useful to say.”

Hoping a Jabberwocky-esque tirade in a Sunday newspaper would do better than his two previous attempts, the former prime minister told voters to reject the “Alice in Wonderland” appeal of Labour’s left-wing leadership frontrunner.

But in chastising Mr Corbyn’s clear vision while failing to name anything positive about his rivals, Mr Blair inadvertently took on the role of Lewis Caroll’s dodo — whose “caucus race” in the famous novel is designed to ensure there is no winner at all.

Fire Brigades Union general secretary Matt Wrack, who is supporting Mr Corbyn, suggested the former PM might be better suited to the “circles of hell” than the tale of a determined dreamer talking truth to paper-thin politicians.

“Blair doesn’t like Alice in Wonderland?” he quipped. “Perhaps Dante’s Inferno was more his style?”

Mr Blair moaned in the Observer: “The explanation for this parallel reality is something to do with people feeling empowered by their ability through it, to ‘fight back’ against ‘the system,’ the traditional ways of thinking about politics with all its compromises, hard decisions and gradual increments.

“They’re making all those ‘in authority’ feel their anger and their power. There is a sense of real change because of course the impact on politics is indeed real.

“The Labour Party is now effectively a changed political party over the space of three months.”

Centrist rival Andy Burnham echoed his former boss yesterday, claiming to “understand” the rise of Mr Corbyn in contrast to Mr Blair, but adding Labour would have “lost the plot” if it refused to listen to the fake-tanned fibber.

Unite political director Jennie Formby however hit back yesterday on social media site Twitter. She said: “Sorry Andy Burnham, I totally disagree that neoliberal multi-millionaire warmongerer Blair has anything useful to say.”

Mr Blair’s rant went so far as to compare the rise of Mr Corbyn and socialist US presidential candidate Bernie Sanders with that of fascist Marine Le Pen in France.

He complained: “Anyone listening? Nope. In fact, the opposite. It actually makes them more likely to support him.

“So the question is: what to do? Do we go full frontal and take it on or do we try to build a bridge between the two realities? I don’t know.”

Mr Corbyn is now the bookmakers’ solid favourite to win the leadership on September 12.

But right-wing MPs have pledged to kick off a Mad Hatter’s tea party if they judge him to have under-performed by the end of next year.

Sources told the Sunday People they would seek to make a “deal” with Mr Corbyn whereby radical policies would only be approved with the consent of the shadow cabinet, and they could seek to depose the leftwinger after just 18 months.

But the former Middle East peace envoy surprised his critics in taking a trip through the looking glass — and acknowledging that his previous intervention had spectacularly backfired.