[garyb]

I'm not sure that the "800" number is the official number for the US Congress. A quick "google" search seems to indicate a lot of advocacy groups use that number. The home page for the United States Congress just lists a pair of 202 numbers:
111th Congress, 1st Session
Washington, DC 20515 | (202) 224-3121 | TTY: (202) 225-1904

[ishabibble]

Thanks for the info!