The billionaire CEO’s army of acolytes wears black caps, jeans and slogan T-shirts.

Elon Musk last week ... by the headline-grabbing Mr Musk, who last month brought his son X to the Oval Office. “Musk shunned the suit and tie, and appeared wearing all black with a Make America ...

Elon Musk swapped his usual black 'Dark MAGA' hat for a red 'Trump was right about everything' hat at Monday's Cabinet ...

When Elon Musk puts on a nice suit, it has a way of looking like a demotion. Elon Musk, wearing a T-shirt and a ball cap, at the White House last month.Credit...Doug Mills/The New York Times ...