fight the charges against him tooth and nail, congressman michael grimm plead guilty to one count of lying on his taxes. that confrontation with the reporter was about this investigation. but the congressman admitted as the owner of the new york city restaurant healthalicious, he cooked the books. he'll pay three years worth of state and federal taxes he owes. congressman grimm is now a convicted felon. under the house rules, he is allowed to keep his seat but may not be able to vote on the house floor. he now faces some serious questions. >> i am certainly truly sorry for it. but i also accept full responsibility. >> congressman, will you resign? >> reporter: at first he ignored that question but finally admitted he plans to stay. >> i can close this chapter on my life. >> doesn't accepting responsibility mean resigning? >> absolutely not. >> reporter: the fbi said not only did grimm fail to pay his