In recent weeks, Romney has portrayed himself as an uncompromising fiscal conservative and criticized Santorum for being a “strong defender” of federal earmarks.

But Senate lobbying records show that the Salt Lake City Olympics Committee under Romney spent $3.5 million employing five lobbying firms in addition to its own in-house lobbying shop. Among their goals: winning federal earmarks that included $60 million for "perimeter" security; $15.8 million for "international sporting competitions"; $3 million for an extension of a Salt Lake City light rail project; as well as millions more for communications equipment, sewer projects and other programs aimed at supporting the Olympics.

The overall federal cost of the 2002 Olympics has been estimated at about $1.5 billion, although Romney defenders say much of this was put in place before he took over the Olympics Committee in 1999. But Romney later touted his efforts in his book about the Winter Olympics, “Turnaround,” writing that he directed his chief Washington lobbyist “to bring in more federal funding than had ever been appropriated for any Olympics, summer or winter.”

And he made his success in doing so a selling point when he ran for governor of Massachusetts in 2002. “I was successful in organizing the Olympics, got record funds from the federal government," he said then.