Americans for Economic Growth is group that was originally owned by right-of-center philanthropist Jim Ellis. It has since received funding from the AFL-CIO and has given money to the left-of-center Patriot Majority PAC.  
Americans for Economic Growth
- “AFL-CIO | Spending Detail: Political Activities Lobbying.” Union Facts. https://www.unionfacts.com/spending/AFL-CIO/Political_Activities_Lobbying.
- “Schedule A. Committee: Patriot Majority PAC.” Federal Election Comission. Accessed April 26, 2019. http://docquery.fec.gov/cgi-bin/forms/C00469890/1295285/sa/ALL. ^