Well, if they were left wing, like Labour leader Michael Foot, the Tory press would make out they were senile anyway.
For instance, when he visited a hospital, the right wing press photographed him visiting a psychiatric ward but made out he was a patient.
Or moderately left like Gordon Brown who was made to look bumbling and incapable of producing a hand written note (he was actually partially sighted).
Whereas, Margaret Thatcher, who was always a fruit loop and then got Alzheimer’s (which I wish on no one) and was prime minister for years.
We had Reagan wittering away about Extraterrestrials and Star Wars on the other side of Atlantic too, so it was pretty scary.
George W was bonkers too but for political balance, I don’t think Clinton was the full ticket ( definitely forgetful about who he’d had “relations” with and Sleepy Joe, was well, sleepy.
What we’ve got to hope for is The Donald crashing the economy (which won’t be good for us outside the EU) and there there’s a chance they might shift him then. But with each day, he looks more like a dictator and his hold strengthens.
I’m ever hopeful that he’ll get the shits one day and drink some bleach (like he advised during Covid) and finish himself off. But then we’ll have Jed Clampet Vance, and it might be worse.