I can’t even see You-Ain’t-Black Biden taking the test and passing even if he used the Donna Brazille Method (media publishes all of the questions and answers publicly, Joe memorizes them before answering). The reason is that in a debate, Trump will challenge him to one of the questions - and Biden will be stuck. Another reason there will be no debate now - being challenged on his cognitive decline. But to save face .... You-Ain’t-black Biden’s campaign will counter that he will take the test after DJT releases 40 years of tax returns - which they know won’t happen.
There’s one big problem with PDJT’s tax returns that will probably prevent his releasing them: they probably contain the identities of many persons and entities with whom he’s had numerous business interactions. Releasing those returns will put a giant target on the back of each of those and PDJT’s enemies will go after each to terrorize them into ceasing business with the whole Trump organization.