*Nelson, Steven (June 5, 2018). [https://www.washingtonexaminer.com/news/white-house/trumps-reforms-target-union-power Trump's war on the Washington bureaucracy]. ''Washington Examiner''. Retrieved June 5, 2018.
*Higgins, Sean (June 8, 2018). [https://www.washingtonexaminer.com/policy/economy/trump-aims-to-limit-government-unions-from-working-on-taxpayers-dime Trump aims to limit government unions from working on taxpayers' dime]. ''Washington Examiner''. Retrieved June 8, 2018.
*Davidson, Joe (May 29, 2018). [https://www.washingtonpost.com/news/powerpost/wp/2018/05/29/trumps-orders-show-unwavering-attack-on-federal-unions-employees/ Trump’s orders show unwavering attack on federal unions, employees]. ''The Washington Post''. Retrieved November 13, 2018.*Kovacs, Trey (October 11, 2019). [https://www.washingtontimes.com/news/2019/oct/11/trump-executive-orders-curtail-union-business-on-t/ Trump executive orders curtail union business on the taxpayer dime]. ''The Washington Times''. Retrieved October 13, 2019.</ref> Among these changes, federal workers were required to use at least 75% of their work time to actually do the jobs they were hired to do rather than doing union-related work.<ref name="3ordersLabor2018"/> That same day, Trump signed another executive order exempting tour operators from an Obama-era regulation that required a certain minimum wage for those working for companies contracting with the federal government.<ref>Multiple references:
*Starr, Penny (May 29, 2018). [https://www.breitbart.com/big-government/2018/05/29/trump-orders-public-lands-open-guides-outfitters-summer/ Summer Win: Trump Exempts Outfitters on Federal Land from Obama Regulation]. ''Breitbart News''. Retrieved June 3, 2018.
*Peacher, Amanda (May 29, 2018). [http://wyomingpublicmedia.org/post/trump-overturns-minimum-wage-river-and-backcountry-guides#stream/0 Trump Overturns Minimum Wage For River And Backcountry Guides]. ''Wyoming Public Media''. Retrieved June 3, 2018.