Sen. Lisa Murkowski Lisa Ann MurkowskiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Energy: Trump officials finalize plan to open up protected areas of Tongass to logging | Feds say offshore testing for oil can proceed despite drilling moratorium | Dems question EPA's postponement of inequality training Poll: 57 percent of Americans think next president, Senate should fill Ginsburg vacancy MORE (R-Alaska) said Monday evening that she does not have enough information yet to vote in favor of the upper chamber’s legislation to repeal and replace ObamaCare.

“Today I don’t have enough information, I don’t have enough data, in terms of the impact to my state, to be able to vote in the affirmative,” Murkowski, considered a swing vote on the bill, told CNN’s Dana Bash.

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Murkowski’s comments came hours after the Congressional Budget Office (CBO) released its nonpartisan analysis of the bill, which it projected would cause 22 million people to become uninsured over the course of 10 years.

The CBO report also said that 15 million people would become uninsured in 2018.

The Senate draft also defunds Planned Parenthood for a year, which Murkowski does not support.

Senate Majority Leader Mitch McConnell (R-Ky.) will need at least 50 Republicans to back taking up the House-passed health care bill, which is being used as a vehicle for the upper chamber’s proposal.