From MSNBC

Nearly one in three people at last night's Jefferson-Jackson Dinner was an Obama supporter. The campaign brought 3,000 supporters to a dinner that had 9,000 attendees. They also made sure to have a representative from each of Iowa's 99 counties in attendance.??When asked if all of the Obama supporters attending the event were from Iowa, Obama's Iowa Press Secretary Tommy Vietor said, "All of them. Except for my dad."

Saying he was running "because of the fierce urgency of now," a quote from Dr. Martin Luther King Jr....in a room filled with 9,000 Democrats that had spent the better part of the night slamming the Republican Party, [Obama] told the audience that he was running to reach across the aisle to those Independents and Republicans disaffected by the past seven years.

...Obama's speech was buoyed by his large crowd of supporters. They chanted, yelled and stood up and cheered as he evoked the civil rights movement to talk about how he could only stand on this stage because those who had come before him were not afraid to take the difficult positions that he is supposedly espousing now.??But rather than drawing energy from the crowd to give the pep-rally style, exuberant speeches he is known for on the stump, Obama's tone was somber, his demeanor serious. He ended on an appeal to Iowans and fellow Democrats.??"That's why I am asking you stop settling for what the cynics say we have to accept," Obama said. "In this election, in this moment, let us reach for what we know is possible -- a world repaired, an America that knows it can believe again."

What was the outcome of the Iowa JJ Dinner? As David Yepsen of the Des Moines Register writes:

The leading Democratic presidential candidates showed up for the Iowa Democratic Party’s big Jefferson Jackson Dinner Saturday night.

Five of them gave really good speeches.

Barack Obama’s was excellent.

It was one of the best of his campaign.  The passion he showed should help him close the gap on Hillary Clinton by tipping some undecided caucus-goers his way. His oratory was moving and he successfully contrasted himself with the others - especially Clinton - without being snide or nasty about it.

Obama was particularly impressive Saturday night.  Should he win the Iowa caucuses, Saturday’s dinner will be remembered as one of the turning points in his campaign in here, a point where he laid down the marker and began closing on Clinton, the national frontrunner...

While the Democratic candidates all had a good night, Obama clearly had the best. 

One thing was certain from last night's event, the 3,000 Obama supporters in attendance were certainly fired up!