Seven super PAC donors provided $902,500 to the House Majority PAC, a Democratic-aligned super PAC, during April and early May. They were examples of unlimited giving to a super PAC by an individual, two unions, a corporation, and three federal PACs on unions.

The House Majority PAC reported receiving $250,000 on May 8 from 
George Marcus
, president of Marcus & Millichap Real Estate Investment Services in Palo Alto, Calif. The American Federation of State, County & Municipal Employees gave $150,000 on April 18. The Mostyn Law Firm, PC, of Houston, Texas, gave $100,000 on April 22. The IBEW PAC Education Fund also gave $50,000 on April 22.

Committee on Letter Carriers Political Education
Laborers International Union of North America PAC
Sheet Metal Workers International Association Political Action League

The House Majority PAC reported raising $1,016,973 and spending $355,438 from April 18 to May 27, leaving $1,056,405 cash on hand as of May 27.

The PAC reported spending $284,065 on television advertising and direct mail as independent expenditures opposing Mark Sanford, R-S.C., in the South Carolina 1st district special election of May 7.