Several conservative congressional holdouts on the stalled GOPhealth-care bill said they’re ready to sign on after revisions tothe measure, potentially giving it a new lease on life, but anumber of moderate Republicans said they’re still opposed.

Related: Freedom Cacus would support health care bill thatkills 3 ACA provisions

House Republicans have been under intense pressure to deliver onyears of promises to repeal Obamacare, but GOP leaders weren’tmaking predictions of an imminent vote, despite renewed pressurefrom the White House as President Donald Trump approaches his 100thday in office on Saturday.

The new enthusiasm stems from an amendment that would givestates the authority to apply for waivers from some of Obamacare’srequirements under certain conditions.

"It’s pretty much everything I was looking for in terms ofconcessions," said Representative Scott DesJarlais of Tennessee, amember of the conservative House Freedom Caucus who had opposed anearlier version.

House Speaker Paul Ryan of Wisconsin and his lieutenants don’tknow whether the new converts will add up to enough support to passthe bill.

"We’re showing people the language now," Majority Leader KevinMcCarthy of California said Tuesday. "And as we work through andtalk through, we’re going to talk to more members tonight andtomorrow. Check with me tomorrow and we’ll be able toknow."

Republicans haven’t yet conducted an updated vote count,according to several House GOP members who discussed the measure ina closed-door meeting Tuesday.

Still ‘cautious’

"Cautious," said Representative Phil Roe of Tennessee, a medicaldoctor, of the approach that House Republican leaders aretaking. Representative Steve Chabot of Ohio said everyone isproceeding quietly so that nothing happens "to blow everythingup."

Related: White house still pressing to hold ACA vote thisweek

But an influential Republican moderate, Charlie Dentof Pennsylvania, said the changes don’t soften his oppositionto the GOP bill.

"The amendment as I understand it doesn’t change my position. Iam still a no," he said Tuesday.

Changes to the bill may also make it more difficult to pass theSenate. “It will be harder for the Senate to get 51 Republicans,”Republican Senator Roy Blunt of Missouri, a former House majorityleader and longtime whip, said Wednesday

The White House, which has been involved in discussions aboutthe changes, is still eager to resurrect the health-care bill.

“We’re not going to overpromise anything; when the votes arethere, the speaker will bring it to the floor but no sooner thanthat," White House Chief of Staff Reince Priebus told reporterslate Tuesday. He said he didn’t know if that might be this week ornext.

Repeal of the Affordable Care Act was a major Trump campaignpromise and a longtime goal of House Republicans.

Growing support

"We probably had about half of the members of the Freedom Caucusin the first go-around," White House legislative affair directorMarc Short told reporters Tuesday. "With this amendment, I’d liketo think we have greater than 80 percent -- we are very confidentin that."

Short said he still thinks they could get the health-care billpassed before the GOP tax bill is introduced in the next four tosix weeks.

Much of the renewed optimism stems from new support within theHouse Freedom Caucus, a group of about three dozen staunchconservatives.

Opposition from many inside that group, who wanted a more robustrepeal measure, along with skepticism from many Republicanmoderates, was pivotal to Ryan’s decision last month to abruptlyscrap a vote on the bill for lack of votes.

On Tuesday, Freedom Caucus’ chairman, Mark Meadows of NorthCarolina, had a meeting at the White House, and told reportersafterward, "There is a lot of optimism."

Other members of the Freedom Caucus who previously didn’tsupport the bill, including Representative Dave Brat of Virginia,and DesJarlais, said they now support the measure.

Both pointed to changes hashed out over a two-week recess byMeadows and Representative Tom MacArthur, a New Jersey Republicanand co-chairman of a group of House moderates.

Their amendment was being circulated among members Tuesday andis expected to be discussed at a Wednesday morning GOP conferencemeeting and a Freedom Caucus gathering later in the day.

State waivers

The amendment would allow insurers to charge higher premiums topeople with pre-existing conditions in states that get a waiver. Toobtain the waiver, states would have to provide sick people pricedout of commercial insurance access to a so-called high-risk poolrun by the federal government, or establish their own, and satisfyother conditions.

Related: Trump changing tactics on tax after health carerepeal failure

Said Brat of his possible support: "If it shows up in languagethe way we discussed it, yeah." A founding Freedom Caucus member,Jim Jordan of Ohio, said the group as a whole will hold its ownmeeting on Wednesday about the bill.

Even Mo Brooks of Alabama, a conservative who opposed theprevious version, said he’s considering the amendment.

"I believe there will be some movement," he said. "I don’t knowhow much."

But it’s far from clear if the Freedom Caucus will take a unitedposition backing the amended bill. And anything short of unitedsupport could cause problems, given the continued opposition of anumber of moderates who don’t see the change as an improvement andcontinue to have concerns about the Medicaid cuts and other issuescentral to the bill.

Dent said the bill doesn’t provide a "soft enough" landing forstates that expanded Medicaid, and still doesn’t provide sufficientsupport to help low- and middle-income people, in his view.

Pressure from the White House, combined with fresh support fromconservatives, could put intense pressure on moderates to vote forthe bill. But those moderates in swing districts, unlike themembers of the Freedom Caucus, could end up losing their seats ifthe repeal bill continues to remain unpopular.

"I will vote my conscience," said Representative Leonard Lanceof New Jersey, who said he also remains opposed.

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