The former MP and Brexit party head was asked up on stage by the president during a campaign rally in Arizona. Donald Trump referred to Mr Farage as “one of the most powerful men in Europe” but “shy” and “a very non-controversial person”.
To which Mr Farage responded: “Oh I’m non-controversial and shy… compared to you!”
Speaking to the crowd, Mr Farage referred to Brexit as a case of “beating the establishment” – something he related to Mr Trump.
He also referred to the president as “the single most resilient” person he has met.
“When you vote next week, you are not just voting for who the President of the USA is, vital though that question may be.
“You are voting for the only current leader in the free world who has got the guts to stand up and fight for patriotism.”
Nigel Farage later admitted he was “very surprised to be asked onto the stage, delighted to do so”.
READ: ‘Nigel’s getting ready!’ Brexit Party will RETURN to take on Boris, ex-MEP warns
It was not the first time Mr Farage has appeared at a Trump rally to offer the president his support.
He also did so in 2016, when Mr Trump was vying for his first term in the White House.
Once again, the theme of Brexit as a comparison to Mr Trump’s election came up.
The president-hopeful at the time vowed he would bring about “American independence” with a Trump administration.
Mr Farage has previously described Mr Trump as a “friend for life”.
However, the former MP criticised the US president’s performance when Mr Trump went head to head with rival Joe Biden for the first presidential debate of the year in September.
Speaking to talk show Real America’s Voice, Mr Farage hit out at the president of interrupting his opponent “far too much”.
He added: “I think he needs to stand back a little bit, let it happen, and almost let Biden make a few more mistakes.”
The second and last debate between Mr Trump and Mr Biden involved microphones that were cut out intermittently in an effort to prevent interruptions at certain points.
Earlier this year, it was revealed Mr Farage had been granted a “national interest” exemption from the US’ coronavirus travel ban.
US citizens are due to go to the polls in less than a week to vote in the country’s next president.
Polling data so far has consistently put Mr Biden ahead – though Mr Farage noted in his speech yesterday Mr Trump “beat the pollsters” in 2016.