Three Republican Senators say they will vote against the latest Obamacare repeal bill unless they receive a guarantee it will be debated further. <br/><br/>Lindsey Graham, Ron Johnson, and John McCain's votes are enough to scupper the Republicans' slim majority. The Senate and House have repeatedly disagreed on a series of healthcare bills ahead of summer recess. House Speaker Paul Ryan seemed to accede to the demands but said it is now the Senate's job to produce a plan.