Senate Republicans will not vote on a bill to repeal and replace Obamacare this week, extinguishing the chances of passing the measure by a Sept. 30 deadline that would have allowed the GOP to avert a filibuster by the Democrats.

Majority Leader Mitch McConnell, R-Ky., pulled the plug on the effort a day after a third Republican came out against the legislation, authored by Sens. Lindsey Graham, R-S.C., and Bill Cassidy, R-La., which would have replaced Obamacare funding with a block grant system that would have let states control both the fate and funding of the embattled healthcare law.