The White House is insisting that Donald Trump’s vision of Apple’s flagship iPhones being manufactured in the US will come to fruition, despite assertions from analysts and the company itself that it would not be possible.

The press secretary, Karoline Leavitt, told reporters during Tuesday’s briefing that the president believed Apple’s recently announced $500bn investment, as well as increasing import costs sparked by his trade tariffs, would encourage the company to ramp up manufacturing in the US.

“He believes we have the labor, we have the workforce, we have the resources to do it. If Apple didn’t think the US could do it, they probably wouldn’t have put up that big chunk of change,” she said.