He is, but has been forthcoming in discussing this. I like JD (much more than Reid) and hopefully he has good recordkeeping on the matter.
The only thing about JD is that he was one of the top 5 moneygetters from Abramoff. That doesn't necessarily mean anything, but considering that his clients were casino-owning Indians (native Americans, whatever) the fact that Las Vegas Reid got money is almost prima facia evidence of shenanigans and JD getting money is suspicious. Burns and Dorgan less so because of large reservations in their states.