Home Regulation Senate Republicans vote to move ahead on Obamacare repeal The Senate voted 51-50 to start debate on Obamacare repeal. Vice President Mike Pence was forced to break the tie. Newsweek US July 26, 2017 16:47 IST Close The Senate voted 51-50 to start debate on Obamacare repeal. Vice President Mike Pence was forced to break the tie.