From Government Executive :
The National Taxpayers Union, R Street Institute  and Project on Government Oversight  submitted letters to the committee supporting many aspects of the legislation ahead of the meeting, as did Justice Department IG Michael Horowitz.
- “Government Executive”: https://www.govexec.com/oversight/2021/05/committee-advances-bill-protect-igs-political-retaliation/174300/
- “National Taxpayers Union, R Street Institute”: https://www.ntu.org/publications/detail/ntu-r-street-encourage-congress-to-advance-bipartisan-inspector-general-bill-to-bidens-desk
- “Project on Government Oversight”: https://www.pogo.org/letter/2021/05/pogo-endorses-ig-independence-empowerment-act/