But the supreme authority in this case is the senate. If the Trump Admin steps too out of line the senate can remove the secretaries, federal judges, and/or the president themself with 60 votes, which would be as easy as 45 DNC, 2 IND, and 13 GOP.

In fact, Trump was forced into signing steel tariffs / sanctions against Russia when he initially refused to sign S.722 in 2017.

Seems like a lot of the sources on that debacle have been lost to the pile of Russia and Trump ties, but I remember it very clearly.