Trump needed a screening test for cognitive issues – not Biden.
Joe Biden’s doctor, who’s treated him since 2009, released a summary of Biden’s records declared him robust and healthy. Biden does have a stutter, so sometimes he does stumble on a word. Russia has been pushing lies about Biden’s health since early spring. The Trump campaign and others have been sharing manipulated videos that make Biden look bad. If you’re not sure if a video clip is accurate, look for the original.