The declaration was odd given the topic being discussed was whether the President would support a Hard Brexit for the UK.
The clip, which can be seen below, is predictably rambling.
"There is definitely a sense that Britain needs America more because of Brexit", said Bronwen Maddox, head of the Institute for Government, a think tank.
She added: 'So there's a very serious message behind this but what we're hoping is that on Friday this can be a symbol that people, no matter what they're campaigning on, can get behind, and can feel that this is representing them and all their campaign issues'.
US President Donald Trump has arrived in the UK for the start of a four-day visit, during which he will meet with UK Prime Minister Theresa May as well as with Queen Elizabeth II during a weekend in Scotland.
He said the stunt aims to "hold up a mirror" to Mr Trump's "toddler-like politics". Mr Trump is hardly likely to catch a glimpse of the six metre giant orange inflatable blimp that depicts him as a screaming baby.
As President Trump is set to embark on a three-day visit to the United Kingdom on July 12, where he will meet with British Prime Minister Theresa May and Queen Elizabeth, there are fears that demonstrations over his visit could turn violent.
But it's not simply the protesters, who are expected to dog Mr. Trump throughout his visit, including his weekend in Scotland, but his fraught relationship with political leaders accustomed to harmonious exchanges with US leaders, a tradition of unity that goes back at least to the vital World War II partnership of Franklin D. Roosevelt and Winston Churchill.
Trump flew in after a fraught North Atlantic Treaty Organisation summit in Brussels where he piled pressure on allies to double their defence spending.
Judge holds firm on deadline for reuniting immigrant families
While parents are held in jail to await trial by a judge, children are moved into accommodation managed by an HHS agency. In total, the authorities are holding around 11,800 minors who crossed the border illegally.
Unlike visits from previous presidents, he won't be spending much time in London after his arrival.
"You see what's going on throughout the world with immigration.I think that's why Brexit happened", he said.
Mr Khan defended the blimp baby: "There are two issues; one is the freedom to protest and the right to free speech and the second is our issues on President Trump".
The US Ambassador to London, Woody Johnson, insisted last week that Trump's itinerary was not intentionally designed for him to avoid encountering throngs of protesters.
An all-night noise protest "Keep Trump Awake in London" is due to take place outside Winfield House from 8 p.m. local time tonight, with the intention of causing a sleepless night for Trump.
On Friday, demonstrators are expected to gather near Chequers, the Prime Minister's country residence, where May and Trump will hold a working lunch.
In the Tuesday memo, the U.S. Embassy in London alerted citizens to the "numerous demonstrations" that could "attract large crowds" that may be less than agreeable toward Americans.
The largest protest is planned tomorrow afternoon, when over 50,000 protesters are expected to march from the BBC building in Portland Place to Trafalgar Square in the heart of London.