While there are many examples of presidents pressuring industries, Trump’s new threats against Apple are more unusual — and they probably won’t work.

Apple Inc. shares are coming off their longest selloff in more than three years, as escalating attacks from the White House threaten to further erode the company’s profit outlook, suggesting the stock’s struggles this year are far from over.

The escalating trade tensions initiated by President Trump have placed Apple in a challenging position. With the threat of a 25% tariff on iPhones, the tech giant faces potential disruptions in operations and profitability.