Small businesses challenging many of President Donald Trump’s global tariffs urged the US Supreme Court to affirm lower court rulings that the import levies amount to a massive illegal tax on American companies.

The case marks another flashpoint in the application of the Supreme Court’s new test for firearm restrictions. The conservative majority found in 2022 that the Second Amendment generally gives people the right to carry guns in public for self-defense and any firearm restrictions must have a strong grounding in the nation’s history.