President Barack Obama is interviewed by Anderson Cooper on Tuesday.

Editor's Note: See Anderson's full interview with President Obama tonight on AC360° at 10PM ET.

Anderson Cooper

The Oval Office is smaller than I thought it would be. Maybe it’s just because it was filled with lights and some of the furniture was moved around for the cameras, but it was more intimate than I had imagined. I’d heard President Obama likes to keep the Oval Office warm, but I was still surprised to feel the heat emanating from the open door. Katie Couric was just finishing her interview when I got there, “Wow, it really is hot in there,” I mentioned to David Axelrod who was standing nearby. “They’ve actually cooled it down a bit,” he said.

I’d met then-candidate Obama a couple times over the course of the campaign. I moderated the YouTube debate that he took part in, and I spent a day with him on the campaign trail, but this was my first time talking with him as President. I never interviewed President Bush. I’m not sure if it was my coverage of Hurricane Katrina or what, but the Bush White House never seemed to respond to our requests for interviews. Go figure.

Today, like all the other network anchors, we were told we only had ten minutes to interview President Obama, so I stayed up late last night and spent most of today whittling down a long list of questions. I also consulted with a number of our great political correspondents to see if they had questions they would want asked. I went into the interview with eighteen questions written down, but the truth is once the conversation started I found myself asking things I hadn’t planned on, and ignoring other questions I was sure I was going to ask. I think the best interviews are genuine conversations, and with the President I tried to just listen, and then respond based on things he brought up. Sometimes I watch interviews on tv and I feel like the questioner has a list of topics to cover and is simply checking them off as they go along.

In addition to asking him about Tom Daschle, and the economic stimulus plan, I also wanted to hear him talk about some subjects he hasn’t discussed lately. I asked him what if anything keeps him up at night, and was surprised by his candid response, a response he actually came back to later in the interview to talk more about. It’s rare for a President to ever say he made a mistake. President Obama not only said that today, he said, “I screwed up” when talking about the Daschle nomination. That surprised me. Though it was clearly a tough day for him politically, the President, in person, is remarkably poised. “Cool” is the term often used, and it does apply. The other words I found myself thinking about to describe him were, “calm,” “sharp,” “on point.” He was dressed neatly, and his nails trimmed. I still occasionally bite my nails, and long-term nail-biters like me tend to notice when someone else doesn’t.

When you interview the President someone stands in your line of sight and gives you hand cues counting down the minutes. It can be distracting. At times as you are listening to the President respond, you want to ask him to hurry it up so you can get in a few more questions, but thankfully I resisted the impulse. At the end I wanted to make sure to save a few minutes to ask him some lighter more personal questions. I called it a lightning round, and he was nice to play along. I asked him about the dog search, what he likes most about his new high tech car, and whether or not he’s had a cigarette since becoming President. I think you will be interested to hear his answer to those and many other questions tonite on 360 at 10pm.