Democratic presidential nominee Kamala Harris is a “third-rate phoney candidate” and “more incompetent” than her boss President Joe Biden, her Republican rival in the November election, Donald Trump, has said.

In a much-anticipated audio-only interview with billionaire tech magnate Elon Musk on Monday on his social media platform X which was delayed by more than 40 minutes due to technical difficulties, the 78-year-old former president said, “She is a radical left lunatic,” as he alleged that “she wants to be more Trump than Trump”.