i am not happy with our choices this election. But you should know that the reason he's the first president to "refuse" a cognitive test is because one isn't included in the presidential physical exam in the first place.
There was a petition of doctors who wanted Trump's cognitive function tested during his physical exam, and everybody involved on the republican side said no, and then Trump himself actually insisted he did take one in a fit of ego. He was, as far as i can tell, the first president to ever take one while in office.
At his request for the cognitive testing, Trump's doctor administered the Montreal Cognitive Assessment which is like 5 questions and has not been proven to be an accurate test of much at all. It's a lot like when you hit your head and they ask you the date and your name and stuff -- answering correctly in no way means you don't have a head injury or concussion or whatever, it's just a couple of first step questions. Then Trump said a lot of lies and bullshit about his "cognitive test"
Now republicans and right leaning publications are spreading shit like this. Biden didn't "refuse" a cognitive test, his aides confirmed that, as usual, a cognitive test is not included during the president's doctor visit.
again, i think our choices are shit this election, i don't like how old Biden is, and i think the way our first-past-the-poll voting system automatically results in an extremist two party system fronting candidates that the majority of the country doesn't like is some fucked up bullshit
but our house is on fire and one candidate is a bucket of water that won't help much and the other is a bucket of gasoline, and, y'know, angry as i am about it all i am still going to vote for the bucket of water while we look for other solutions
Don't let them trick you into letting gasoline get thrown on this fire please