The Congressional Budget Office is no longer expected to release its score of the latest draft of the Senate GOP's healthcare bill on Monday, according to a report.

The CBO was initially expected to publish its analysis of the updated proposal repealing and replacing Obamacare on Monday, with a vote on the plan initially expected later this week.

But Republicans said the nonpartisan agency is not expected to release the score anymore, according to Politico. Lawmakers believed the CBO's analysis of the new draft to take longer, since the score would include a complicated amendment proposed by Sen. Ted Cruz, R-Texas.

Senate Majority Leader Mitch McConnell delayed consideration of the healthcare bill Saturday after Sen. John McCain, R-Ariz., underwent surgery to remove a blood clot above his left eye.

McCain will spend the upcoming week at home in Arizona.

Some Republicans were waiting for the CBO's analysis before deciding whether to support the healthcare plan.

When the CBO released its analysis of the initial healthcare bill, the agency projected that 22 million fewer Americans would have health insurance coverage in 2026.