Gingrich super PAC gets $5 million infusion

CBS News has confirmed that the wife of casino magnate Sheldon Adelson, Dr. Miriam Adelson, has given $5 million to a super PAC called Winning Our Future that is supporting former House Speaker Newt Gingrich.

This donation brings the total for the Adelson couple to the Gingrich super PAC to $10 million. This also makes them the largest donor to date in the 2012 presidential campaign. The second largest known donor so far is a $2 million donation last year to President Obama's super PAC by Dreamworks executive Jeffrey Katzenberg.

Earlier: Billionaire Adelson donates $5 million to help Gingrich but does not want publicity

Ron Reese, Adelson's spokesperson at Las Vegas Sands, did not respond to calls for comments but in the past told CBS News that Adelson does not expect anything in return for his donations.

A source close to the Gingrich campaign says the casino magnate likes less regulation and Gingrich is promising less regulation. Another source indicated that more gaming money supporting Gingrich's super PAC may follow.

Super PAC reports detailing who gave money to which super PAC are due out on January 31st.