THE CANADIAN PRESS

A subdued Barack Obama squared off Wednesday against a sharp and eloquent Mitt Romney in their hotly anticipated first presidential debate, providing Americans with an unfiltered glimpse of both men just a month before the Nov. 6 election.

The incumbent president's often meandering answers, rife with halting pauses, as he took questions on domestic policy were in stark contrast to the energetic Romney, who often talked over debate moderator Jim Lehrer to aggressively tout his policies while criticizing Obama.

``Gasoline prices have doubled under the president,'' Romney said.

``Electric rates are up. Food prices are up. Health-care costs have gone up by $2,500 a family. Middle-income families are being crushed. Look at the evidence of the last four years. It's absolutely extraordinary.''

As Obama frowned, Romney continued: ``Going forward with the status quo is not going to cut it for the American people who are struggling today.''

The president, indeed, seemed grim and tentative throughout much of the debate, often staring down at his notes with a pained smile as Romney forcefully defended himself against uneven attacks from Obama on everything from his job creation plans to his tax and education policies.

``Gov. Romney has a perspective that if we cut taxes ... and roll back regulations, we'll be better off; I have a different view,'' said Obama, adding Romney's tax policies ``skew toward the wealthy.''

No matter how often Obama suggested otherwise, Romney countered, ``I will not reduce the taxes paid by high-income Americans ... I am not in favour of a $5 trillion tax cut.''

Obama brushed him off, saying such assurances are mathematically impossible since cash-strapped governments cannot cut taxes across the board, increase defence spending and bring down the national debt.

``The fact is, if you are lowering the rates the way you describe, governor, it's not possible ... it's math; it's arithmetic,'' he said.

Yet the president failed to attack Romney even once on the most damaging episode of his presidential campaign , his recently revealed remarks that almost half of Americans won't vote for him because they're government freeloaders.

Instead, he was on the defensive throughout most of the showdown at the University of Denver.

``When I walked into the Oval Office, I had more than a trillion-dollar deficit greeting me,'' he said. ``And we know where it came from: two wars that were paid for on a credit card; two tax cuts that were not paid for; and a whole bunch of programs that were not paid for; and then a massive economic crisis.''

Despite that, Obama said, ``we had to take some initial emergency measures to make sure we didn't slip into a Great Depression.''

While the Romney campaign celebrated their man's performance , some conservative commentators called it the best showing for a Republican candidate in decades , the spin from Team Obama was immediate.

``The president spoke to the American people like they're adults,'' Jen Psaki, his travelling press secretary, told ABC News minutes after the debate wrapped up.

After months of often bitterly maligning one another's policies and job performances from a distance, the two men met face to face for only the fourth time in their lives. As they shook hands to greet one another just before the debate got under way, they chatted briefly and laughed as if they were old pals.

Both seemed nervous as they answered the first question posed by Lehrer, who asked them to delve into their differences on economic policy.

Romney said his plans involved energy independence, promoting more international trade, ensuring Americans have the skills they need to succeed, balancing the budget and championing small business.

Fifteen minutes into the debate, the Republican found his wings, becoming more forceful against Obama, frequently interrupting his answers and ignoring Lehrer's attempts to wrest back control of the faceoff.

Lehrer was soon trending worldwide on Twitter, the social media platform. A Twitter account even popped up with the handle Silent Jim Lehrer. One of the Tweets: ``Um ... I ....''

The president, meantime, never seemed to find his footing and missed several opportunities to exploit some of Romney's considerable vulnerabilities. The debate, indeed, was remarkable for its civility, neither man was unduly nasty towards the other.

Following the showdown, Romney and his family lingered on stage triumphantly. Obama and his wife made a hasty exit.