TAMPA, Fla. -- Under pressure, Newt Gingrich arranged the release of a contract Monday night showing the Federal Home Loan Mortgage Corp. paid his consulting firm 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 has likened his work for the federally backed mortgage giant known as Freddie Mac to that of a historian, and later a strategic adviser. His top rival for the Republican presidential nomination, Mitt Romney, says he was lobbying.
Monday's disclosure touched off fireworks between the two contenders during a prime-time debate.
"This contract proves you were not a historian. You were a consultant," Romney said. "And you were hired by the chief lobbyist of Freddie Mac."
Gingrich chafed at the suggestion he was "influence peddling" and turned the issue back on his opponent.
"Gov. Romney has done consulting work for years," the former House speaker said. "I've never suggested his consulting work was lobbying."
Gingrich's work for Freddie Mac was disclosed long ago, but controversy has flared in the 48 hours since he trounced Romney in the South Carolina Republican presidential primary. The contract with Gingrich's former firm listed Freddie Mac's director of public policy jargon for lobbyist as the project executive.
The next primary is set for Jan. 31 in Florida, a state particularly hard hit by the housing crisis of 2008, and one where Gingrich's connections with Freddie Mac may carry a political stigma.
The material was released by the Center for Health Transformation, which Gingrich helped create, and has since sold.
Its disclosure came about two hours before a campaign debate in Tampa, and the timing suggested Gingrich was hoping to blunt any attack Romney might make at the event.
Gingrich released them on the same day as Romney ramped up criticism for not making the details public sooner. Gingrich said it wasn't only up to him because he no longer controls the firm named in the contract and confidentiality clauses were at play.
The disclosure comes amid a volley between the Romney and Gingrich campaigns about who is hiding information voters may want. After facing pressure himself, Romney intends to release some tax records on Tuesday, about a week after Gingrich made his tax returns public.
Gingrich has said previously that firms he ran received about $1.6 million from Freddie Mac for consulting services over several years, and he personally pocketed $35,000 a year. Only the contract covering 2006 was released.
Even before the material was made public, Romney's campaign said it wouldn't be satisfied with only the contract or contracts themselves. "Speaker Gingrich should immediately make his Freddie Mac contract and work product available to the public," Gail Gitcho, Romney's communications director, said in a statement.
The Center for Health Transformation and the Gingrich campaign share a lawyer, Stefan Passantino. He did not return a phone call seeking comment.