Sen. Rand Paul, R-Ky., said Tuesday that Republicans will be pursuing the "repeal and delay" strategy on Obamacare once they vote Tuesday to debate a House-passed healthcare bill.

"This morning, @SenateMajLdr informed me that the plan for today is to take up the 2015 clean repeal bill as I've urged," he said on Twitter. "If that is the plan, I will vote to proceed to have this vote. I also now believe we will be able to defeat the new spending and bailouts."

This morning, @SenateMajLdr informed me that the plan for today is to take up the 2015 clean repeal bill as I've urged. — Senator Rand Paul (@RandPaul) July 25, 2017

GOP leadership is expected to call for a vote on a procedural motion that would start as much as 20 hours of debate on the House-passed healthcare bill, the American Health Care Act. If that motion gets the 50 votes it needs, assuming a tie-breaking vote by Vice President Mike Pence, the House bill would be stripped out and a new bill would be swapped in.

On Monday, several senators said they were uncertain which bill would be considered. Paul's tweet suggests that bill would be the "repeal and delay" strategy that Republicans sent to former President Barack Obama's desk in 2015, which he vetoed.

If that is the plan, I will vote to proceed to have this vote. I also now believe we will be able to defeat the new spending and bailouts. — Senator Rand Paul (@RandPaul) July 25, 2017

The bill, formally called the Obamacare Repeal Reconciliation Act, would repeal Obamacare's taxes, mandates and spending but leave in place regulations on insurers and give lawmakers two years to come up with a new plan. Conservatives such as Paul favor that route.

Paul said if the bill did not pass, Republicans likely would look to repeal whatever they could, including the taxes and mandates in the law.

Republican Sens. Lisa Murkowski of Alaska, Susan Collins of Maine and Shelley Moore Capito of West Virginia have said that they are opposed to taking that route. Other than Collins, however, it's not clear if the senators would vote to debate the healthcare legislation and consider amendments.