Now, Nigel Farage turns to his tax policy.
He says there is a "political narrative that has got stronger and stronger" over the years - whether it is fair to tax the rich more.
"Is it fair that people earn these vast sums of money? Surely we should tax them more," he says.
"And you might have thought traditionally this would be a policy that would come from the Labour Party, but not a bit of it, not a bit of it. In 14 years in power under the Conservatives, we saw taxes go up, we saw thresholds frozen.
"We saw significant changes to non-dom tax rules. Indeed, there were something like 150,000 people with non-dom tax status ten years ago.
"That number today probably, we don't know officially yet, but probably nearer now to 60,000 than 70,000. And falling very, very quickly."
Farage explains that since 2008, "the rich have got richer, and those at the lower end of the scale are simply no better off".
He adds: "It all goes back to the bailouts. It all goes back to the failures of the banking system in 2008, when effectively it was the little man and woman bailed out the big banks."
Turning to his plan, Farage warns that "many talented people are leaving" the UK - and "we want, as a party, as many entrepreneurs, as many risk takers, as many job creators, as many people paying lots of tax, and as many people to invest in huge sums of money".
"That is why today we're coming up with this idea of the Britannia Card."
Under this plan, wealthy foreigners and returning British citizens would be granted a 10-year residence permit and tax benefits in exchange for a one-time fee of 拢250,000.