Earlier quoted context omitted.
My assumption is that Trump understands what a mess he has gotten himself into and wants to extricate his head, without losing face. Congressional action will allow him to do that because he can blame congress for undoing his tariffs which was a good idea all along. This is the only way out.
You are laboring under the dubious assumption that Trump gives any fucks about the US economy. (And that, even more dubious, that the real-life congress will manage more than bloviation on TikTok.) This is a pure klept move. Who knows if he understands that the US manufacturing iPhones and cars-with-no-foreign-parts isn't possible in his lifetime (or most of ours), but regardless, he understands that this is his chan…
I do believe that. If the economy crashes he will lose support from his billionaire friends. Also, the economy (along with immigration) was one of the top reasons people voted for him. I do believe he doesn't want to lose popular support. Currently GOP senators won't speak up against him because they know MAGA supporters will turn on them. But if he loses support GOP senators will be emboldened.