New Civil Liberties Alliance sued the Trump administration in Florida federal court Thursday over the president's executive orders imposing tariffs on Chinese imports.

A nonprofit group said the president misapplied a law in imposing those levies and portrayed its filing as the first lawsuit to challenge the Trump administration over its tariffs.

In a background call before Trump's speech, a senior White House official told reporters that the president would impose a "baseline" tariff on all imports to the US. That rate is set at 10% and will go into effect on 5 April.