The consulting firm he founded has released the contract Newt Gingrich had with the Federal Home Loan Mortgage Corp.

It shows Freddie Mac paid Gingrich a $25,000 monthly retainer fee in 2006, for a total of $300,000. The agreement calls for "consulting and related services" but makes no mention of lobbying.

Gingrich, who has since sold his interest, has said that he served as a historian, and later a strategic adviser for the federally-backed mortgage giant. Campaign rival Mitt Romney says he was lobbying.

Since his loss in the South Carolina GOP primary on Saturday, Romney has been raising questions about Gingrich's dealings.

Meanwhile, Romney's most recent financial disclosure report listed several investments in Fannie Mae and Freddie Mac.


(Copyright 2012 by The Associated Press.  All Rights Reserved.)