(CNN) - It's 10 minutes from the end of the debate and Sen. Barack Obama's name has not come up. Democratic presidential candidate John Edwards of North Carolina got his first mention of the night when former Massachusetts Gov. Mitt Romney blasted the slogan that there are "two Americas." Sen. Hillary Clinton of New York was mentioned multiple times, but Illinois' Obama has not received any attention from the Republicans.
– CNN Producer Ted Metzger
Leroy Brooks from Houston, Texas
(CNN) - Leroy Brooks from Houston, Texas asks: What does the confederate flag over here represent? Is it a symbol of racism, a symbol of a political ideology, is it a symbol of southern heritage, or is it something completely different?
What did you think about the candidates' response to the question? What would you have asked? Add your comment below, or better yet, turn on your camera to record your commentary and reaction video and send in your I-Report. Your comments below or you I-Report video could be part of CNN's post-debate coverage.
(CNN) - Arizona Sen. John McCain forcefully contended that the United States is winning the war in Iraq.
Responding to a question from a Huntsville, Alabama, woman dressed in a Muslim head scarf who asked about improving the United States' image in the Arab world, McCain said the effort must be sustained.
"I'd do a lot of things, but the first and most important and vital element is to continue this surge which is succeeding and we are winning the war in Iraq," McCain said.
McCain went on to say he would press efforts to rebuild Iraq, support the government of Prime Minister Nuri al-Maliki and train Iraqi police.
"But I'll tell you one other thing I'm going to do," he said, his voice rising. "We're going to fight back the Democrats' efforts to set a date for withdrawal, which is a date for surrender."
Steve Nielson from Denver, Colorado
(CNN) - Steve Nielson from Denver, Colorado asks: JFK’s vision put a man on the moon from a non-existent space program in about 7 years. Meanwhile, Congress is pulling funding for humans-to-Mars research altogether. Is there a candidate amongst you willing to take a pledge on behalf of the Mars society of sending an American to the surface of Mars by 2020? If not, what's your vision for human space exploration?
Rudy Giuliani took some heat from the audience Wednesday night over gun laws.
(CNN) – Former New York Mayor Rudy Giuliani fielded a question on whether citizens should be required to pass an exam before being permitted to buy a gun, only to get booed by the audience.
Giuliani said that although the Constitution allows citizens the right to bear arms, "The government can impose reasonable regulations."
Despite disapproval from the audience, Giuliani continued to say that government regulations should be related to individuals with criminal backgrounds and histories of mental illness.
Giuliani defended his record on crime in New York City. "When I took over, there were 2,000 murders a year, 10,000 felonies a week, and I enforced the gun laws very aggressively. I enforced all laws very aggressively. We went from being one of the most dangerous cities in the country to being one of the safest," Giuliani said.
Related video: Watch Giuliani answer a question about gun laws.
– CNN Associate Producer Natalie Apsell
Adam Florzak from Illinois
(CNN) - Adam Florzak from Illinois asks: Over the years, politicians have borrowed just under 2 trillion dollars from the social security trust fund to cover these massive budget deficits and now the retirements of our generation are at risk. What will you do as president to help repay this money and restore the trust?
ST. PETERSBURG, Florida (CNN) - A few quick observations - the only time Sen. Hillary Clinton has been mentioned is in the pre-produced spots that the campaigns submitted to CNN and YouTube. No one has mentioned her on stage. Is anyone else surprised by that?
Also, is it just me or did there not use to be so much booing at presidential debates?
And no, your eyes are not deceiving you, that is indeed action star Chuck Norris sitting in the audience. He is supporting former Arkansas Gov. Mike Huckabee.
– AC360 Associate Producer Jack Gray
(CNN) - In one of the most colorful YouTube questions, an animated impression of Vice President Dick Cheney - holding a hunting rifle - asked candidates whether they would give their VP "as much power and influence as I have had."
None took the bait to criticize President Bush.
Former Sen. Fred Thompson talked about the importance of a vice president having expertise in some areas such as national security. "I think that a vice president ought to have substantial authority," he said.
Sen. John McCain said, "I'm going to give you some straight talk. This president came to office within a time of peace, and then we found ourselves in 2001. And he did not have as much national security experience as I do. So he had to rely more on the vice president of the United States. And that's obvious."
McCain added, "I would not have to do that." But, he said, he might have to rely on the vice president for expertise in other areas such as telecommunications and information technology, which McCain called "the future of this nation's economy."
-CNN's Josh Levs
David Cercone from Pompano Beach, Florida
(CNN) - David Cercone from Pompano Beach, Florida asks: Do you accept the support of the Log Cabin Republicans? Why should the Log Cabin Republicans support your candidacy?
(CNN) - Keith Kerr from Santa Rosa, California asks: I’m a retired brigadier general with 43 years of service. And I’m a graduate of the Special Forces Officer Course, the Command and General Staff Course, and the Army War College, and I'm an openly gay man. I want to know why you think that American men and women in uniform are not professional enough to serve with gays and lesbians.