I very much doubt it.

> does the President just ignore the ruling

https://www.nbcnews.com/politics/supreme-court/live-blog/-tr...

"Although the Supreme Court has struck down the president's tariffs, several U.S. statutes would allow Trump to reimpose tariffs if he chooses to do so."

"“With respect to tariffs in particular, the Court’s decision might not prevent Presidents from imposing most if not all of these same sorts of tariffs under other statutory authorities,” Kavanaugh, a conservative justice, wrote."

Then we wait another year for SCOTUS to slow-walk it again.