Actually, Frist and Delay, et al, started off this whole mess after consulting with Hammesfahr himself, quoting him in their speeches and referring to the info he was pushing. They were outraged based mostly on what he was telling them, and believing he was credible.
But, it wasn't long before they found out he was a fraud and started backpedaling on the medical aspects in a big way.
Off to the pool. : )
BUT... When I spoke with the people at Frist and Delay's office they were talking about Constitutional rights to representation, not on anything Hammesfahr. Further I find it hard to believe that Frist and Delay based their outrage all on one source and never looked at any of the other evidence.