Your last question insinuates that "other stakeholder groups" are pursuing legislative action by the USG".   This is simply not true.  

Alex

Alex, to clarify I did not (necessarily) mean “other ICANN stakeholder groups” as in formal SGs in the GNSO. I meant “stakeholder groups” in the generic sense (organized pressure groups). That being said, I am pretty sure that some of these organizations are members of IPC and/or BC.

https://secureandtransparent.org/about-csti/

Members:

• ACT: The App Association
• Alliance for Safe Online Pharmacies (ASOP Global)
• The Center on Illicit Networks and Transnational Organized Crime (CINTOC)
• Coalition for Online Accountability
• Crucial Point LLC
• CTO Vision
• Domain Tools
• LegitScript
• Liberty Asia
• Motion Picture Association of America (MPAA)
• National Association of Boards of Pharmacy
• Recording Industry Association of America
• SpamHaus

Dr. Milton L Mueller

Professor, School of Public Policy

Georgia Institute of Technology

Internet Governance Project

http://internetgovernance.org/