Sheldon Adelson is seated before Romney delivers a speech in Jerusalem on July 29. (Charles Dharapak/Associated Press)

Louisiana Gov. Bobby Jindal, Ohio Gov. John Kasich and Virginia Gov. Bob McDonnell all met with GOP mega-donor Sheldon Adelson at a recent retreat for Republican governors, Politico reports.

The Huffington Post reveals that, according to two Republican fundraisers, Adelson spent almost $150 million on the 2012 election. He's headed to Washington this week to meet with House GOP leaders to discuss various issues, including the Foreign Corrupt Practices Act. Investigators are looking into whether arrangements around Adelson's casino in Macau violate that statute.