Elon Musk, the billionaire backer of Donald J. Trump, had been promoting Nigel Farage. But on Sunday Mr. Musk said Mr. Farage “doesn’t have what it takes.”
In a barrage of posts rife with misinformation, he revived questions about a child sex abuse scandal, vilified the prime minister and defended a jailed far-right agitator.
Foreign leaders have rushed to ingratiate themselves with Donald J. Trump in recent days, nervously recalling the clashes, insults and feuds of his first presidency.