Here today is the answer to my own question:
http://eaa.org/news/2013/2013-07-25_...e-ATC-fees.asp
Only 30 signatures from the House. Pretty pitiful, won't get any help there. I'm not surprised to see that my own "representative" dd not sign it.
The FAA's response to the Senators' letter was pretty pitiful too. No justification (they obviously think no justification is required), they just said "we did it."