People across all parties have observed Biden's inability to often remember where he is or the subject he is speaking about. Multiple members in this thread supporting a myriad of candidates observed that the way Biden speaks is often incoherent and illogical. Just as many, if not more, have made the same observations about Trump and asked him to take similar cognitive exams. The mental acuity and ability of both candidates has been a long-standing issue for everyone. Biden's inability to address that concern without yet another blow up that's in a long line of blow up's is not defensible and trying to brush it under the rug with whataboutism will be as helpful as claiming Trump was way more corrupt than Clinton anyway in 2016.