President Trump suggested on Sunday he would move forward with a plan to impose a 25 percent tariff on automotive imports, an action that U.S. carmakers previously cautioned would lead to layoffs and price hikes.

The White House is currently examining whether to impose the new duties based on national security concerns, the same justification the administration used to previously levy tariffs on steel and aluminum imports. If applied globally, such a tax would likely lead to significant backlash from China and top U.S. allies such as Germany, Japan, and South Korea.