Jon Stewart endorses Operation Wait List: The War on Error
Some people love Stewart and the Daily Show, others thing he is a partisan hack. Frankly, I believe both at times, but find him funny.
But he's gone absolutely gang-busters on the VA repeatedly, and has done a phenomenal job of getting the story out to people who might not watch the traditional news, and prefer it with healthy doses of comedy.
Fair warning though: his language is salty, so it might be a good idea to watch and listen with headphones on: