There’s a story of an ex hausted tenor at La Scala who, facing repeated cries of “Encore,” responded that he couldn’t go on. A man rose in the audience to say, “You’ll keep singing until you get it right.”

That seems to be the defining principle of the Obama administration — whose response to every problem, every setback, every hiccup and challenge has been, simply, “more Obama.”

Indeed, for people who aren’t sticklers for political jargon, it will be a shock that last night was Obama’s first State of the Union Address, since it was his third formal address to a joint session of Congress. Yet for all of the political déjà vu, what was most surprising last night was the degree to which Obama delivered even more of the same.

OBAMA TRIES TO REBOOT PRESIDENCY

SPENDING FREEZE? PUH-LEEZE

OBAMA: ONE MORE SHOT AT HEALTH CARE

EVEN FELLOW DEMS SLAMMING PREZ

JUSTICE ALITO STUNG BY OBAMA BLAST

Washington graybeards and pundits have been insisting that Obama needs to “start over,” “reboot” and “tack to the middle” after Scott Brown’s win in Massachusetts. But Obama’s response last night was to recommit himself to the agenda that has gotten him in so much trouble.

In fairness, the president took a French-bath of Clintonism before he took to his beloved TelePrompTer. He doused himself with the scent of the deficit-fighter and trade-promoter. He unveiled a slew of small, easy, applause-gathering proposals and populist appeals that he knows will go nowhere.

He also indulged in a lot of feel-your-pain pathos, trying to connect with the real Americans suffering from the recession and the misdeeds of a “Washington” that Obama seems to think is run by someone other than him.

But the eau-de-Clinton couldn’t mask the stench — and Obama, in his supreme arrogance, didn’t really seem to care.

There was no “pivot to the center,” no serious accounting for the Massachusetts miracle or his misfortunes. Instead, there was an innumerate, inaccurate and distinctly unpresidential whine — blaming George W. Bush for nearly all of his problems (leaving out, among other things, that the Democrats have been controlling Congress and crafting budgets since 2006).

The White House insists that the new wave of populism created by Democratic governance is, in fact, the same populist wave that carried Obama to victory in 2008. In other words, Obama was elected president by the backlash against his own presidency.

This novel theory allows Obama to stick to his view that there’s nothing wrong with his health-care plan, and anyone who feels differently hasn’t heard or understood the president’s explanations.

So, he not only implored Democrats not to “run for the hills” on the health-reform bill, but insisted that as “temperatures cool,” hot-tempered opponents will, of course, realize they were wrong about the bill.

Obama began his presidency insisting that government is the answer to our problems. A year later, he still believes that the era of big government is upon us.

In the same speech in which he preened over a gallingly gimmicky “spending freeze,” the president promised more jobs bills, more “investments” in schools, roads, trains and factories. He even reaffirmed his support for his carbon-tax legislation — which would send far more jobs overseas than it would create here at home.

But Obama has a bigger problem: Aside from a few throwaway lines of self-deprecation, whenever he grew passionate, it was to blame others.

His predecessor topped his list, of course. But also everyone else who disagrees with him.

Obama insists that Americans need to muster the courage to agree with him, to sign on to his agenda. Just as at Omaha Beach and Bull Run, Americans need to show their mettle. “Again, we are tested. And again, we must answer history’s call.” That “call” is the call of Obama.

“I never suggested that change would be easy, or that I can do it alone.” So come on, you slackers, fall into line.

He decried the politicians who are in “permanent campaign” mode — the same week he brought into the White House his campaign manager.

Other politicians are vain, cowardly and insubstantial. They need the courage to change. Meanwhile, Obama is great the way he is.

That is the attitude that has gotten the president in so much trouble. And last night’s State of the Union speech showed us that change really isn’t easy, particularly for the president.

JonahsColumn@aol.com