I don't know about trust but the constitution isn't what enabled this type of behavior, it's the legislature. They've been abdicating their duties to executive controlled bodies (FCC, FDA, FTC, EPA, etc.) and allowing the president to rule through executive action unchallenged. They could have stopped these tariffs on day one. SCOTUS isn't supposed to be reactionary, congress is.
The constitution has all the mechanisms in place to control the president, they just aren't being used by the legislature.
It's a tricky problem that has a number of proposed solutions. I'm not going to act like it's a silver bullet but I think open primaries in federal elections would go a _long_ way towards normalizing (in the scientific meaning) the legislature and allowing people who want to do the job, rather than grandstand, into the offices.