According to a transcript of the LBC interview, which was conducted by anti-EU British politician Nigel Farage, Le Pen said the decision to host Macron was inconsistent with May's own stance on delivering Brexit and reducing immigration to Britain.
"We had been told that it was not possible to leave the European Union, and the United Kingdom has just demonstrated that, when the people want it, we can set up the conditions to exit EU".
"Great Britain has demonstrated that there is a democratic choice and I believe that the way in which parliament respects the will of the British people is quite remarkable and honourable", she said.
"To whatever extent this vote is a signal on France, the high turnout and rally towards the mainstream center look bad for her (Le Pen)", said Anna Stupnytska, Global Economist at Fidelity International.
And as Mr Farage attempted to quiz the French presidential hopeful about France's future as a member of the Schengen Agreement, Ms Le Pen shot in: "Of course, immediately".
LBC presenter Nigel Farage interviewed Marine Le Pen in Paris.
She batted away questions about antisemitism within her party, asking to be judged on her reaction to it, instead.
Northwestern holds on for wild 68-66 victory over Vanderbilt
Northwestern's 23 wins entering the tournament were the most in school history, and its 20 last season were tied for second-most. The victory advanced the Wildcats to the Round of 32, where they'll take on top-seeded Gonzaga on Saturday here in Utah.
The clip of Mr Loeuillet is part of a documentary on the National Front, which is set to air on Wednesday.
Ms Le Pen suggested that she would push for a constitutional amendment to that end and submit it to a referendum in French Polynesia.
Frédéric Chatillon and two other party officials already face trial accused of setting up a scheme to overcharge for campaign expenses that were reimbursed by the state during the 2012 general election campaign.
Le Pen responded: "She is good at getting it wrong but this is rather reassuring".
And Farage found no time to ask her about an investigation by French prosecutors over allegations that she distributed violent images, nor any to address claims that Le Pen and her estranged father, the former party leader Jean-Marie Le Pen, failed to declare the full value of family properties.
The first round of the French election takes place on April 23, after which the two candidates with the most votes, expected to be Le Pen and Macron, enter a run-off on May 7. "We are old allies and economically speaking as well, we have a great many exchanges to implement", she said. He said Downing Street had not wanted to engage with Trump until after he was elected.