He has only been a senator for 2 terms. I'm pretty sure he would have started at the bottom when he switched houses just like if he had first been elected in '06. With that said, he is the top "Dem" on the Budget committee. He also served on committees where he has interest, Environment and Public Works, Energy and Natural Resources, chairman of Veterans' Affairs, etc.. The Dems were quite a bit nicer to him in assignments than they could have been.