Tariffs on Trial: What’s at Stake in Trump’s Supreme Court Argument (youtube.com)
Whether the president has violated the constition. ‘No taxation without representation.’ Congress does taxes, not the president, and Congress regulates foreign commerse, not the president, under the Constitution, and the tariffs were without Congress, if it can be understood that tariffs are taxes.
The delegation to the president of this right is technical and based on a bill.
IEPA case.