Australian author and conservative activist Nick Adams has received perhaps the ultimate endorsement - a glowing tweet from US President Donald Trump.
Australia's strict merit-based immigration policies also received a thumbs up from Trump in the same early morning tweet.
"Nick Adams new book, Green Card Warrior, is a must read," Trump told his 25.8 million Twitter followers on Friday.
"The merit-based system is the way to go. Canada, Australia!"
Trump sent out the tweet after Adams was interviewed on Fox & Friends on Friday, the Trump friendly US morning TV show on Rupert Murdoch's Fox News cable network.
Trump is known to be a regular viewer of Fox & Friends.
Adams has become a regular guest on US talk shows and cable news programs and argues immigrants to the US must speak English.
Adams' book recounts his attempt to attain a green card to work in the US and, according to his publisher's website, is set "against the larger story of the broken legal immigration system, and unfairness of illegal immigration in America today".
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Adams says he spent four years and nearly $US50,000 to get the green card.
Despite his Australian upbringing, he is a voracious supporter of the US.
"Every single day that I wake up here in the United States I thank God because this is just such a special country," Adams said on Fox & Friends.
"My life would be totally different and what makes America special is the fact that it is not just a country.
"It's an idea.
"It's an ideal and there has to be a cultural buy-in from those who decide to make America home.
"They can't just come here and milk us.
"They have got to love the place and they have to become an American."
Adams describes himself on his website as a survivor of childhood cancer who earned undergraduate and postgraduate degrees at the University of Sydney and, at the age of 21, was publicly elected the youngest deputy mayor in Australian history.
In the US he created The Foundation for Liberty and American Greatness (FLAG), an organisation dedicated to promoting American exceptionalism and combating anti-Americanism worldwide.
