With several senators expressing severe doubts or outright opposition to the version released last week, its unclear that the revisions will win enough support to resuscitate the repeal effort.

Even if Republicans manage to get a bill through the Senate by Sept. 30, the House would have to accept it without changing a single comma.

A number of Republicans are jumping on board a proposal by Senators Lindsey Graham of South Carolina and Bill Cassidy of Louisiana to replace the Affordable Care Acts insurance subsidies with block grants to states.

The GOPs ability to pass an ACA replacement with just 51 votes expires at the end of this month.

President Donald Trump slammed Senate Majority Leader Mitch McConnell on Twitter for the second day in a row Thursday over the failure of Congress to overhaul the nations health-care system, escalating a war of words with the key Republican.

Three GOP senators voted no on a stripped-down ACA repeal bill, and it's not clear what the GOP will do next about its promise to kill Obamacare.

Republicans say this weeks health care debate may ultimately lead to a bare-bones bill that merely ends the mandate that all have insurance or pay a penalty.

Senate Republicans agreed to begin floor debate on health-care legislation, a hard-fought step amid uncertainty about exactly what plan senators will ultimately be asked to vote on.