President Donald Trump has threatened Apple with a 25 percent tariff on iPhones if production is not moved to the US.Apple has been diversifying its production outside of China due to various reasons, including COVID-19 and US-China tensions.Trump's threat follows reports that Apple intends to source all US iPhones from India, with FoxConn developing a plant there.While Apple has made promises to invest in the US, experts believe a completely 'Made in America' iPhone is not feasible.