Collins: 'Very difficult' to imagine voting for ObamaCare repeal bill
© Greg Nash

Sen. Susan CollinsSusan Margaret CollinsGOP senators introduce Trump's plan to claw back billion in spending Hillicon Valley: Sweeping new data rules take effect | Facebook, Google already hit with complaints | Schumer slams reported ZTE deal | Senators look to save cyber post | Dem wants answers about Trump's phone security Senators express concern over Trump's decision to scrap top cyber post MORE (R-Maine) signaled on Sunday that she is unlikely to support the latest GOP ObamaCare repeal effort, but said she hasn't made a final decision.

"It’s very difficult for me to envision a scenario where I would end up voting for this bill," she told CNN's "State of the Union."

She added that she has "a number of serious reservations" about the bill, including its impact on "cost and coverage," Medicaid and the "erosion of protections" for pre-existing conditions.

But Collins stressed that she has not made a final decision and is waiting for the Congressional Budget Office (CBO) analysis that could be released as soon as Monday.

The CBO has warned it will only release a preliminary analysis, and it could be "several weeks" before it can fully determine the impact on the number of Americans who have health insurance or the cost of insurance.

GOP leadership can't afford to lose Collins's vote if they want to pass the ObamaCare repeal bill from GOP Sens. Lindsey GrahamLindsey Olin GrahamRetired English teacher corrects letter from Trump and sends it back to White House Graham: Trump 'probably' shouldn't call use of FBI informant 'spygate' Graham on canceled summit: Trump thought North Korea was ‘playing him’ MORE (S.C.) and Bill CassidyWilliam (Bill) Morgan CassidySenate GOP urges Trump administration to work closely with Congress on NAFTA GOP, Dem lawmakers come together for McCain documentary Graham working on new ObamaCare repeal bill MORE (La.), which would replace ObamaCare's insurance subsidies and Medicaid expansion with block grants.

GOP Sen. John McCainJohn Sidney McCainTo woo black voters in Georgia, Dems need to change their course of action Senate panel again looks to force Trump’s hand on cyber warfare strategy Senate panel advances 6B defense policy bill MORE (Ariz.) announced on Friday that he couldn't in "good conscience" vote for the legislation.

GOP Sen. Rand PaulRandal (Rand) Howard PaulGOP senators introduce Trump's plan to claw back billion in spending Pro-Trump super PAC raises .5 million in 6 weeks Trump has exposed Democratic hypocrisy on prison reform MORE (Ky.) has also said he is opposed to the legislation.

Several other key senators, including Sen. Lisa MurkowskiLisa Ann MurkowskiGOP senators introduce Trump's plan to claw back billion in spending Overnight Health Care — Sponsored by PCMA — VA reform bill heads to Trump's desk Senators introduce bill to measure progress in opioid fight MORE (Alaska), remain on the fence.

Collins—who was widely viewed as a likely "no" vote after opposing the GOP repeal proposals in July—said on Friday that she was "leaning against" supporting the legislation.

“The premiums would be so high they would be unaffordable,” she told the Portland Press-Herald, referring to the cost for individuals with pre-existing health conditions.

GOP leadership lacks a clear path to getting 50 votes for the Graham-Cassidy bill before the rules allowing Republicans to pass their healthcare with a simple majority—bypassing a Democratic filibuster—expire at the end of the month.

An ObamaCare repeal bill that needs 60 votes likely couldn't pass the Senate, with Democrats unanimously opposed to the effort.

Despite the long odds, Graham, Cassidy and the Trump administration have pledged to keep searching for 50 votes as they try to find a way to pass legislation this week.

Collins said on Sunday that she had a "lengthy" talk with Vice President Mike PenceMichael (Mike) Richard PenceIndiana middle school shooting survivors protest NRA China's fingerprints on summit's cancellation, so US must push back Trump must move beyond the art of the deal in North Korea talks MORE and has been told that they are still making revisions to Graham-Cassidy to try win over enough support.

Trump floated over the weekend that Paul could ultimately be convinced to vote yes, saying that he thinks "he may find a way to get there for the good of the Party!"

Trump also targeted Murkowski, saying in Alaska "deductibles high, people angry!"

Paul opened the door to supporting a significantly revised version of Graham-Cassidy on Sunday, but those changes could threaten support from other factions of the GOP caucus.

"I've always been a yes for repeal," he told NBC. "They could remove the block grants from it, and then we could vote on what we all agree on."

--This report was updated at 10:00 a.m.