Undercutting a claim by GOP leaders that they have enough votes to pass tax reform, Sen. Susan Collins Susan Margaret CollinsGraham: GOP will confirm Trump's Supreme Court nominee before the election Gardner signals support for taking up Supreme Court nominee this year Tumultuous court battle upends fight for Senate MORE (R-Maine) told reporters Friday that she is still undecided on the legislation.

“I have not made that announcement or that decision,” Collins said when asked if she supports the legislation.

But Collins said she sees a path to getting to yes.

ADVERTISEMENT

“We’re making very good progress,” she added.

Collins has significant leverage.

The GOP needs 50 votes to pass the bill, with Vice President Pence breaking a tie. Forty-nine GOP senators are believed to be on board, but two deficit hawks, Sens. Bob Corker Robert (Bob) Phillips CorkerHas Congress captured Russia policy? Tennessee primary battle turns nasty for Republicans Cheney clashes with Trump MORE (R-Tenn.) and Jeff Flake Jeffrey (Jeff) Lane FlakeJeff Flake: Republicans 'should hold the same position' on SCOTUS vacancy as 2016 Republican former Michigan governor says he's voting for Biden Maybe they just don't like cowboys: The president is successful, some just don't like his style MORE (R-Ariz.), are withholding their support pending their demand that the overall size of the package be reduced by $350 billion to $400 billion.

Collins, if she gets to yes, would be vote No. 50.

Senate Republican Whip John Cornyn John CornynTumultuous court battle upends fight for Senate Texas Democrats roll out first wave of planned digital ads as Election Day nears Calls grow for Biden to expand election map in final sprint MORE (R-Texas) and Finance Committee Chairman Orrin Hatch Orrin Grant HatchBottom line Bottom line Senate GOP divided over whether they'd fill Supreme Court vacancy MORE (R-Utah) announced moments before Collins's comments that they had the 50 votes needed to pass tax reform.

“I believe so,” Cornyn said.

Collins has been pressing for a provision that would allow taxpayers to deduct up to $10,000 in property taxes from their tax bills. She also wants passage of two bills aimed at stabilizing health insurance markets, in part because the tax bill would eliminate ObamaCare's individual mandate, which could raise premiums.