"I lived in a country where if I'd tried to be myself at the time, it would have ended up breaking laws", he said, The Advocate reports. But I gave the prime minister my ideas on how to negotiate it, and I think you would have been successful.
"In many ways it helped to inspire me to believe in the power of politics to do good because ultimately that is what politics is all about", he said.
He said: "I don't think another vote would be possible because it would be very unfair to the people that won".
The Irish premier was speaking at the US Chamber of Commerce in Washington DC as part of his four-day St Patrick's tour of the US. "And with the help of the administration, we were able to save those jobs, so thank you very much for that".
But despite criticising Mrs May's approach at the negotiating table, Mr Trump reiterated his desire for a strong UK-US trade deal.
"Greater trade between us reinforces a comprehensive alliance that goes far beyond the economic, providing for our national security and bringing prosperity to our people", Fox said in a statement in response to Trump's tweet.
Taoiseach Leo Varadkar has told U.S. president Donald Trump that making America great again does not mean forgetting or losing sight of what makes it great already, writes Juno McEnroe in Washington DC.
Trump Jumps Again Into Brexit Debate
Pence also signaled support for federal funds to be allocated for gay "conversion therapy" on his 2000 US House campaign website, where it said "resources should be directed toward those institutions which provide assistance to those seeking to change their sexual behavior".
Mr Pence said Mr Varadkar had offered "inspiring words" and asked his sister Annie Poynter to say blessings before they tucked into a breakfast of "Eggs St Patrick", applewood smoked bacon and boxty.
Later Mr Varadkar will meet United States president Donald Trump at the White House for the traditional St Patrick's Day shamrock ceremony.
The breakfast came after a meeting between Pence and the prime minister past year, where Varadkar "raised LGBT+ rights and equality issues", the UK's Independent reported. "I regret that Brexit's happening".
"I think it could've been negotiated in a different manner, frankly".
Varadkar even spoke about his sexuality at the Naval Observatory.
The British parliament on Tuesday overwhelmingly rejected Prime Minister Theresa May's Brexit deal, throwing the country's Brexit process into further chaos.
Last night, he presented the US President, Donald Trump, with the traditional bowl of shamrock in a ceremony at the White House.