https://www.economist.com/interactive/trump-approval-tracker
https://www.economist.com/interactive/trump-approval-tracker/economy
Crabgrass bet = it only will get worse for Trump.
The dementia situation is not specifically an issue in Economist reporting. That, or I missed it as one of the many trees making up the forest
Biggest takeaway - The economy is a wreck and people know it and dislike it being that. It is the biggest single factor moving the needle into net negative territory.
If nothing else buries him, the wretched things he's done to ruin the economy will bite.
The overall poll reporting differs little except for being less comprehensive. Readers can do independent research, but they should not expect different results other than in detail.