WATCH LIVE: Sebelius faces questions on ObamaCare problems

Health and Human Services Secretary Kathleen SebeliusKathleen SebeliusFormer health chiefs: Stabilizing ObamaCare markets benefits Republicans OPINION | 5 big ideas to halt America's opioid epidemic Aligning clinical and community resources improves health MORE answers questions before the House Energy and Commerce Committee about the problems with enrolling for ObamaCare.