I don't know Pence's history - only what's been posted on the boards, and I figure it's of mixed quality. I suspect that Pence was tied to something, maybe not all of his own doing, and he was put into the position of VP contingent on playing a role to both keep the DS thinking they had a mole in the WH, and that he would do exactly as he was told.

There's going to be some interesting books coming out in a few years.