Richardson had appeared on the show as part of the "Meet the Candidates 2008" series, and was grilled by Russert about his contradictory positions on numerous issues.
The Massachusetts attorney general's office in a May 1 letter to the settlement monitor cited several recurring issues with bank compliance including reviews taking more than 30 days and erroneous or contradictory notices confusing borrowers.
Obama responded by criticizing his opponent on a host of foreign policy issues -- claiming Romney had favored positions that would have hurt the United States or offered sometimes contradictory views.