current obamacare system and the time to make any sweeping change is right now. >> this is the closest we will ever get to repealing and replacing obamacare. >> republicans racing the political clock to push through a health care replacement bill have a message. >> republicans unified. >> we are unified. >> we are really excited about the unified vote. >> but the fight over health care is exposing divisions within the republican party. between small government conservatives, swing state moderates and a president who ran as a populist and is governing as a nationalist. this week, two key house committees approved a plan to overhaul the affordable care act, but not before conservatives rushed out to pan the bill both in the house -- >> this is just obamacare with a different label. >> it appears to be the largest welfare program ever proposed by republicans in the history of our country. >> and in the senate. >> the bill as written is not going to pass the senate.