The disincentives for Apple shifting its production domestically include a complex supply chain that it began building in China during the 1990s.

China still accounts for the majority of Apple iPhone production, but the tech giant has sought to ramp up manufacturing in places like India and Vietnam.

The Trump administration's massive tariffs on China have Apple reportedly flying planes full of iPhones to the U.S. and consumers rushing to buy them before the prices potentially skyrocket. Why it matters: The iPhone maker is one of many large companies caught up in an escalating trade war between the world's two biggest economies.