Oversight of the Federal Communications Commission : hearing before the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Twelfth Congress, second session, May 16, 2012.

Oversight of the Federal Communications Commission : hearing before the Subcommittee on Communications and Technology of the Committee on Energy and Commerce, House of Representatives, One Hundred Fourteenth Congress, second session, March 22, 2016.

Oversight of the Federal Communications Commission : media ownership : hearing before the Subcommittee on Telecommunications and the Internet of the Committee on Energy and Commerce, House of Representatives, One Hundred Tenth Congress, first session, December 5, 2007.

Oversight of the Federal Communications Commission : hearing before the Subcommittee on Communications, Technology, and the Internet of the Committee on Energy and Commerce, House of Representatives, One Hundred Eleventh Congress, first session, September 17, 2009.

Continued oversight of the Federal Communications Commission : hearing before the Subcommittee on Communications and Technology of the Committee on Energy and Commerce, House of Representatives, One Hundred Fourteenth Congress, first session, July 28, 2015.