My goodness... Trump is not far right. He's still left of center for nearly everything. Please stop conflating him with anyone that ebbed calls themselves a libertarian.

As for the "how" read Rothbard. First step: cut spending my axing 95% of the "government." Second step: end all wars and deploy troops to borders. Third step: de-regulate by throwing out all federal regulations that are not specifically permitted by a historical, period correct reading of the constitution. Fourth step: audit the fed.

I can't speak to things in Argentina. But the above is what I would do upon swearing in. I wouldn't ebbed throw a party. Just start axing everything.