The White House is meeting with several GOP senators, who each support the bill, on Monday night.
Over the weekend, news broke that voting on the Senate health care bill, the Better Care Reconciliation Act or BRCA, would be postponed to allow Sen.
Lee of Utah said the current version doesn't repeal Obamacare taxes and regulations or lower premiums.
While healthcare activists will undoubtedly be somewhat relieved by Moran's announcement, his statement and history as a critic of the Affordable Care Act indicate that his refusal to support the Senate bill shouldn't be mistaken for a move to save Obamacare. Dems will join in! Trump wrote on Twitter.
While Congress a year ago passed a repeal bill, they did so knowing it would be vetoed by President Barack Obama. Two other Republicans have already said they're against it.
Part of the reason the American Health Care Act, the BCRA's predecessor, struggled to pass the House of representatives was the resistance of the hardline conservative Freedom Caucus, which included McConnell's fellow Kentuckian Rep. Thomas Massie. He said the Senate would vote in the coming days on a bill that would delay the repeal of Obamacare for two years - all as Trump called for a wholesale repeal of the law.
Other GOP senators already are talking about a new approach to health legislation, with Lindsey Graham of SC tweeting about his latest proposal with Cassidy to keep most of the Affordable Care Act's taxes in place but give states far more freedom on what to do with the money.
The CNN count showed a whopping 41 of the 52 GOP senators unwilling to commit to either the motion to proceed on the bill, a key procedural vote to begin debate, or the bill itself.
Another potential Senate candidate, former state Republican chairman Robert Graham, has met with donors about the contest and has purchased website addresses that could be used in a campaign.
Sens. Dean Heller of Nevada, Rob Portman of Ohio, Shelley Moore Capito of West Virginia and Lisa Murkowski of Alaska have all publicly said they were deeply uncomfortable with the steep cuts to Medicaid proposed in the Senate bill.
McConnell said in a statement Monday night that the two senators defections made it "apparent that the effort to repeal and immediately replace the failure of Obamacare will not be successful".
Their decision means Republicans in the Senate are well short of having the support to pass their legislation, and raises serious questions about whether President Trump will reach his goal of ending ObamaCare. Trump said in a July 12 interview with the Christian Broadcasting Network's Pat Robertson that if the measure didn't pass the Senate, "It would very bad".
Moran was one of about 10 Republican senators who had raised objections to an earlier version of the bill released last month.
He told a Rotary Club in Glasgow, Ky., that if Republicans can't "agree on an adequate replacement, then some kind of action with regard to the private health insurance market must occur".