Very good man': Trump, Obama change tone in 90-minute Oval Office meeting

President Barack Obama and President-elect Donald Trump met for the first time in real life Thursday, spending 90 minutes discussing the handoff of the White House to Trump's control in January.

Both the POTUS and the PEOTUS, or President-elect of the United States, said the meeting was productive.

In remarks following the meeting, Trump, who first made waves in U.S. politics by calling into question Obama's citizenship and once called him the "founder of ISIS," referred to the outgoing commander in chief as a "very good man."

"This was a meeting that was going to last for maybe 10 or 15 minutes, and we were just going to get to know each other," Trump said. "I have great respect. The meeting lasted for almost an hour and a half, and as far as I'm concerned, it could have gone on for a lot longer.

The conciliatory tone presented a stark turnaround in his posture toward the president.

"So, Mr. President, it was a great honor being with you," Trump said, "and I look forward to being with you many, many more times in the future."

The two discussed American assets, pressing issues facing the next president, as well as Obama's achievements while in office.

Obama, who once said Trump shouldn't be let anywhere near the nuclear codes, also took a different perspective today.

"My number one [priority] in the next coming two months is to try to facilitate a transition that ensures our president-elect is successful," Obama said. "I have been very encouraged by the interest by President-elect Trump's wanting to work with my team around many of the issues that this great country faces."

"I believe that it is important for all, regardless of party and regardless of political preferences, to now come together, work together to deal with the many challenges we face."