Roman dictators have always fascinated me. It worked (for a while at least) because both sides agreed it was necessary and temporary. The people who appointed the dictator knew extreme measures were needed to navigate them through some crisis. The dictator knew if they tried to hold on to power longer than was necessary they would simply be removed or killed, their supreme power only extended through the crisis in which they were needed.

I mean, it may not be a completely solved problem, but you don't have to be too clever to think that perhaps rules similar to the War Powers Act ought to also apply to the President's authority to apply tariffs.