An Illinois toy company is challenging Donald Trump’s tariffs at the Supreme Court. Learning Resources Inc. filed an appeal asking the Supreme Court to take up the case soon rather than let it continue to play out in lower courts.

Learning Resources urges the Supreme Court to assess the legality of Trump’s tariffs, which courts have recently found unjustifiable under IEEPA. These tariffs, said to act as a tax, affect businesses and consumers alike.

U.S. steelmaker shares soared on news of President Trump’s new tariffs. But are these tariffs as bulletproof as investors seem to believe? The steel tariffs, like those on autos and auto parts, are sector-based.