The video hits the nail on the head as far as mockery is concerned, with one of the old congressional dotards asking Zuckerberg: "When I have the Facebook, do I also have the internet?"
Ted Cruz, who in reality pressed Zuckerberg on Facebook's alleged suppression of conservative free speech, asks the CEO if they can be friends. Zuck replies: "Don't try to get in my Porsche again."
There's also tons of wheezing, a weird question about WWI and an awkward musical performance from Senator Lindsey Graham.
It's almost identical to the real thing.