http://usark.org/2015-blog/hr-2920/
USARK put out an alert last night asking people to please contact their representatives to oppose HR2920.
If you don't know who your representative is you can look up the info at
http://www.house.gov/representatives/find/ based on your zip code.
IMO the mere fact that this legislation was introduced - as it would write into the US Code and not the Code of Federal Regulations that importation and interstate transport of listed species is prohibited - shows that the USFWS knows it's on very shaky ground in the lawsuit. If it were sure of its position this bill would not be needed.