President-elect Donald Trump’s proposal to use the military for mass deportations is drawing criticism from both sides of the political aisle.

President-elect Trump’s incoming “border czar” Tom Homan is touting a plan for mass deportations and some state and local officials are already signaling they’ll push back. Meanwhile, fears of a possible trade war are being sparked by Trump’s plan to impose new tariffs on imported goods.

U.S. President-elect Donald Trump has vowed to conduct “the largest deportation effort in American history,” no matter the price tag—but the economic costs of such a campaign may be bigger than he has bargained for.