i'm pretty sure that's a clip from "boston legal." the character shatner plays on it, denny crane, is a right wing republican & a bit of a blowhard. no one takes him seriously on the show.
the guy who writes the series, david e. kelley (husband of michelle pfeiffer) is a liberal who often uses over the top humor in the show to make a political point. looks like that clip's been taken out of context.