National Review Online has this information about Howard Dean's vote in 1983 to weaken the anti-incest laws in Vermont.
The bill was introduced by a Republican legislator (remember, we're talking about Vermont so it's not like she was a real Republican) to benefit her neighbors: "'They're a super-neat couple who don't have any money, and they just have each other, and I think they should be able to get married if they want to,' [Elizabeth] Edwards told United Press International for a February 23, 1983, story." Dean voted with the Vermont House majority to pass the bill; the Vermont Senate killed it in committee.
Naturally, this begs the question -- if they only have each other, and they're 65 and 86, why does the couple (a woman and her blood-uncle) need to enter a sexual relationship sanctioned by marriage?
Yuck. So much for all those Arkansas jokes I can rattle off the top of my head. Time to change the state being ridiculed . . .