The Senate plans to vote next week on the Republicans' latest attempt to repeal and replace the Affordable Care Act, according to a spokesman for Senate Majority Leader Mitch McConnell, R-Ky.

"It is the Leader's intention to consider Graham-Cassidy on the floor next week," spokesman David Popp told S&P Global Market Intelligence.

The bill, introduced Sept. 13, seeks to take the federal dollars being spent on the ACA's Medicaid expansion, tax credits, cost-sharing reduction subsidies and the basic health plan funds and turn them into block grants to be split among the 50 states and the District of Columbia.

It is sponsored by Sens. Lindsey Graham of South Carolina, Bill Cassidy of Louisiana, Dean Heller of Nevada and Ron Johnson of Wisconsin, who said they put the legislation together over the last month after deciding it was too soon to declare defeat following the Senate's failure in July to pass an ACA repeal bill.

The Graham-Cassidy proposal initially appeared to have little chance of passing the Senate, but the White House, Senate Majority Leader Mitch McConnell, R-Ky., and House Speaker Paul Ryan, R-Wis., have thrown their weight behind the proposal, shunning a bipartisan effort, which has now been sidelined.

McConnell acknowledged Sept. 19 that time was short to pass the bill before the deadline for the Senate's budget reconciliation rules of a 51-vote simple majority expires.

Republicans hold 52 seats in the Senate.

Sen. Rand Paul, R-Ky., said he is opposed to the bill. Sen. Susan Collins, R-Maine, also has expressed concerns about the legislation.

Popp did not respond to questions about whether McConnell thought he had the 50 votes needed. All Democrats remain opposed to the Graham-Cassidy legislation.

The Republicans plan to rely on Vice President Mike Pence to cast the tie-breaking 51st vote if necessary.