CNN's David Gergen said President Trump "seemed presidential today" and "we were back to normal life for the first time" following a two-hour-plus meeting with Russian President Vladimir Putin.

“This is presidential,” Gergen, who served as a presidential adviser to Richard Nixon, Gerald Ford, Ronald Reagan and Bill Clinton William (Bill) Jefferson ClintonBarr says Ginsburg 'leaves a towering legacy' Trump reacts to Ginsburg's death: 'An amazing woman who led an amazing life' Jimmy Carter remembers Ruth Bader Ginsburg as 'a beacon of justice' MORE, said.

“This was big-league stuff.”

Gergen, 75, also pointed out the length of the highly anticipated meeting at the G-20 summit in Hamburg, Germany, which was originally scheduled to last just 30 minutes.

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“The bigger takeaway here for me right now is that he seemed presidential today. And we actually had a secretary of State who was explaining stuff to us," said Gergen. "How often have we had that?"

"This seemed like we were back to normal life for the first time, one of the only times in the last few months. This is what we except from our president," he continued.

"We may agree or disagree with the particulars, but we want our president to show leadership and be at a presidential level, and I thought we saw more of that today. I think we should be encouraged by that.”

Gergen has mostly been critical of Trump, calling the president's decision last month to not take part in the Paris climate agreement one of "the most shameful acts in our history" and "grotesquely irresponsible."

Trump and Putin had “positive chemistry” and “connected very quickly” in their first-ever face-to-face meeting, Secretary of State Rex Tillerson said.

The president also confronted Putin about Russian meddling in the United States' 2016 presidential election, something he has been under intense pressure to do.

Trump broached the issue first, according to Tillerson, and repeatedly pressed Putin on the matter, even as the Russian president denied involvement.