Institute for Legal, Legislative and Educational Action
Since this is in .pdf, you'll need to open the link to see Texas' Lt. Governor David Dewhurst's letter to Congress. He's not a happy camper.
You can see another article here http://www.texastribune.org/2013/11/12/texas-lt-gov-did-nsa-violate-gun-owners-rights/
http://www.ltgov.state.tx.us/docs/DHD_TXCongress_20131112.pdf