This is truly one of the most bizarre things I've seen in American politics. If Joe Biden had done this and on stage just bobbed and weaved and danced to music for 40 minutes with no purpose, we would say Joe Biden is unfit and not up for the task.
What he did do was stand there and allow the people to be serviced, to allow them to get out safely. Sitting there, allowing the music to play was absolutely the appropriate thing to do.
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