The Adelson family has spent $21.5 million through super-PACs in the 2012 election so far, the Huffington Post first reported. The wealthy donor has donated millions of dollars to Gingrich’s presidential campaign.

"It's no wonder that Newt Gingrich's sugar daddy is now pouring millions into a super PAC to help defend Tea Party Republicans in the House,” executive director of the House Majority PAC Ali Lapp wrote. “After all, it was under the disgraced former speaker that that House pursued a right-wing agenda soundly rejected by the American people."

The House Majority PAC is a Democratic super-PAC with the goal of electing Democrats in the House of Representatives.