In a light moment, Trump retrieved a Marine's hat that was blown off by the wind before chasing after the cap when it flew off for the second time.

Trump seemed to be in high spirits after he returned home from the G20 summit in Germany, clapping his hands as he approached Marine One in Maryland on Saturday.

While the president was walking towards the aircraft, a Marine who was guarding the helicopter had his hat fly off.

Trump bent over and placed the hat back on the serviceman's head but the cap went flying once more, sending Trump and his military escort chasing after it.

The gesture was commended by CNN, despite the known tensions between the news outlet and the president.

President Trump retrieved the hat of a US Marine that was blown off on Saturday. The president bent down to grab the hat (left) before placing it on the serviceman's head (right)

Trump was walking to Marine One after landing at the Andrews Air Force Base in Maryland

The clip begins as Trump walks towards the helicopter following his arrival at the Andrews Air Force Base in Maryland.

The white hat of a Marine suddenly falls a few feet in front of Trump and he stops mid-stride while he is talking to another uniformed man.

Trump then steps forward and picks the hat off the ground and walks over to the Marine and places the cap on his head, patting the man on the shoulder.

However, the chopper's blades are making it far too windy, sending the hat flying off again.

Trump chases after the hat but lets the other military man place it squarely on the Marine's head.

Before Trump boards the helicopter, he pats the Marine once more on the side.

It was a light gesture for the president and even CNN commented on the moment.

An anchor said: 'You got to come watch this. This was actually a light moment. We just wanted to play it for you.

'He's trying to right the ship here and help out the Marine who is standing alongside it and can't move from his position.'

However, the chopper's blade made it much too windy and the Marine's hat flew off again

Trump and another military man chased after the cap before the president boarded the helicopter to fly to the White House

Trump had just returned from his four-day trip to Poland and Germany, for the G20 summit.

His overseas visit made ripples at home and internationally, when Trump had his first face-to-face meeting with Russian President Vladimir Putin.

Putin hailed the meeting, saying Saturday he thinks Trump accepted his assurances that Russia didn't meddle in the US presidential election.

He added that their conversation could be a model for improving ties between the two countries.

Speaking to reporters after the two-day Group of 20 summit in Germany ended, Putin said he and Trump had a long discussion about the allegations of Russian interference in last year's election that have dogged Trump's presidency.

The Russian leader said he reiterated his 'well-known' position that 'there are no grounds' for the allegations.

It was revealed on Saturday that Trump's eldest son Don Jr arranged a meeting between his father's campaign aides and a lawyer linked to the Kremlin just two weeks after he won the Republican nomination last year.

Trump had just returned from a four-day overseas trip for the G20 summit. He had his first face-to-face meeting with Russian President Vladimir Putin (pictured)

Standing out: Donald Trump was seen wearing an American flag pin to the G20 summit in Hamburg, Germany - unlike the other attendees, who wore the G20 badge

Trump also made headlines on Saturday when photos from the international meeting showed he was the only world leader not wearing a special G20 pin.

Instead he chose to don an American flag, which sent his supporters into a frenzy of approval online - but Barack Obama did it first, donning an American lapel pin at last year's G20.

Trump's apparent challenge to the G20 status quo is a small one, but to his followers a deeply symbolic one.

His whole election campaign was based around rejecting the ties to other countries that had been developed by successive Republican and Democrat administrations.

They included promising to throw out international trade deals that he said were bad for America - such as the Trans-Pacific Partnership - and levying heavy taxes on goods manufactured in Mexico.

He has also gone his own way with climate change, withdrawing from the Paris climate agreement to the disquiet of many other international leaders.