will still be plenty of time for people to register and get online. >> reporter: vice president's biden's comments came in an exclusive interview with cnn's sister network hln and followed another high profile mea culpa. >> let me say directly to these americans, you deserve better. i apologize. >> reporter: embattled health and human services secretary kathleen sebelius was grilled wednesday when she faced a house committee led by republicans looking for scalps. >> michelle snyder is the one responsible for this debacle? >> well, excuse me, congresswoman, michelle snyder is not responsible for the debacle. hold me accountable for the debacle. i'm responsible. >> reporter: the hearing got downright weird at times. >> while you're from kansas, we're not in kansas anymore. >> i was in the third grade there. i thought i saw you on a tricycle. >> ever used a coupon? >> yes. >> reporter: one white house official told cnn that helped their cause as they confront a flood of criticism but republicans continuously pointed out the website was suffering an