That video was posted by a fellow named Glen Woodfin, so I looked him up. He has a FB page, where It appears that he is very liberal with using photo shop, which would raise suspicions.
...But then of course, he seems to have some legit appearing posts. For example, his claim concerning the photo showing the cozy relationship Kamala Harris has with the Soros clan, I have seen in several other regular news sites.
It would appear more likely as Woodfin hints, that those CNN dudes were actually laughing WITH Joe, rather than AT him.
Still, funny....