American billionaire Elon Musk has insulted Canadian Prime Minister Justin Trudeau in a post on X (Twitter) after Trudeau ruled out Canada becoming part of the United States, which has been a recurring theme in President-elect Donald Trump's remarks lately.

Elon Musk has told Justin Trudeau he “doesn’t matter” after the outgoing Canadian prime minister dismissed Donald Trump’s plan for the U.S. to take over its northern neighbor. The key adviser to the president-elect jabbed Trudeau on his X social media platform (formerly Twitter) after Canada’s premier announced Monday he is to resign.

As a giant of industry and the world’s richest man, Elon Musk wields influence across the global economy. He’s leveraging that success to extend his influence into the democratic process in Canada and elsewhere.

In a Wednesday interview on X, Elon Musk said cuts of $2 trillion to the federal budget might not be possible and was a "best-case outcome."

Elon Musk, who U.S. President-elect Donald Trump has tapped to oversee a government cost-cutting effort, acknowledged that his declared goal of cutting $2 trillion in spending from the $6.8 trillion federal budget would be a long shot.