The dam will be the final judge here. If it collapses, it will cause a re-alignment of the political situation in California. Not quite enough to turn the state red - they need Trump to clear out the Illegals and fix the voting system for that - but enough to at least give Republicans a chance at winning once in a while.
It is only when the masses out there realize that the Dems have been living in the house that “daddy built” without maintaining it for decades, will they realize that Dems cannot be trusted to run the state. They are not there, yet, but if that dam collapses, they will be there.
The dam itself is not going to collapse and is in no danger of doing so.