White House officials have privately expressed reservations about Senate Republicans' latest effort to repeal and replace parts of the Affordable Care Act (ACA) despite President Trump's public enthusiasm for the measure.

Politico reported Friday that people in the White House worry whether the effort led by Sens. Lindsey Graham Lindsey Olin GrahamMcConnell locks down key GOP votes in Supreme Court fight Will Republicans' rank hypocrisy hinder their rush to replace Ginsburg? Momentum growing among Republicans for Supreme Court vote before Election Day MORE (R-S.C.) and Bill Cassidy William (Bill) Morgan CassidyCoushatta tribe begins long road to recovery after Hurricane Laura Senators offer disaster tax relief bill Bottom line MORE (R-La.) can pass the Senate or the House.

What's more, one official told Politico that "we really aren't sure what the impact" of the measure would be.

ADVERTISEMENT

In public, Trump has sought to rally support for the Graham-Cassidy proposal, casting it as a new opportunity for Republicans to reform health care after their last attempt failed in the Senate in July.

But in private, the president has asked aides what the White House could do that would be seen as fulfilling the promise to "repeal and replace" ObamaCare.

According to Politico, several officials said the president was eager to sign anything resembling health care reform into law.

The proposal ultimately seeks to give more power to the states by ending federal ObamaCare subsidies and the Medicaid expansion, and instead converting those pots of money into block grants for the states.

But the exact impacts of the bill remain unclear. The Congressional Budget Office is working on a preliminary assessment of the measure that is expected out early next week. But that assessment will not include an estimate of the bill's effects on premium costs and the number of people with health coverage.

So far, the only Senate Republican to have come out against the Graham-Cassidy bill is Sen. Rand Paul Randal (Rand) Howard PaulSecond GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump seeks to flip 'Rage' narrative; Dems block COVID-19 bill MORE (Kent.). But several GOP senators remain undecided, and all eyes are on what Sens. Lisa Murkowski Lisa Ann MurkowskiMcConnell locks down key GOP votes in Supreme Court fight Most Americans think winner of election should pick next Supreme Court justice: poll Murkowski: Supreme Court nominee should not be taken up before election MORE (Alaska), Susan Collins Susan Margaret CollinsMcConnell locks down key GOP votes in Supreme Court fight Most Americans think winner of election should pick next Supreme Court justice: poll Murkowski: Supreme Court nominee should not be taken up before election MORE (Maine) and John McCain John Sidney McCainMomentum growing among Republicans for Supreme Court vote before Election Day McConnell urges GOP senators to 'keep your powder dry' on Supreme Court vacancy McSally says current Senate should vote on Trump nominee MORE (Ariz.) will do.

Those three lawmakers opposed the Senate's last attempt to repeal the ACA, and have not committed to supporting the latest effort.