A New York liquor importer and several other American small businesses made their case in court Tuesday as to why President Trump should not be able to carry out his "Liberation Day" tariffs, an early test of whether the legal battles over the president's trade war have any chance of halting the administration's plans.

The challengers say President Donald Trump is violating the Constitution and hope the Court of International Trade will grant their request for a preliminary injunction before the end of the month.