As Republican leaders plan to release a revised health care bill on Thursday, at least a dozen senators have expressed concerns about several major issues in the current draft.

Pre-Existing Conditions and Other Regulations

The current draft of the Senate bill preserves the Affordable Care Act’s protection for people with pre-existing illnesses. However, it allows states to waive many other rules, including the requirement that insurers cover a basic set of benefits. Senators Ted Cruz and Mike Lee want to add an amendment that would allow insurers to offer plans that do not follow any of the Affordable Care Act’s rules.

Medicaid Funding

Many senators represent states that, under the Affordable Care Act, expanded Medicaid to cover more people, and they are worried that the Senate bill’s funding reductions would require states to cut benefits and enrollees. But major changes to the Medicaid provisions in the bill are not likely.

Subsidies for Insurance Premiums

Some of the more moderate Republican senators are worried that the bill cuts government subsidies too much, particularly for older Americans. The more conservative bloc wants to further reduce the subsidies.

Affordable Care Act Taxes

The current version of the bill repeals a 3.8 percent tax on investment income and a 0.9 percent payroll tax for high-income households, a change that would result in a large tax cut for the wealthiest Americans. Republicans have discussed keeping the taxes, a move that could help pay for insurance subsidies, and it is likely they will remain.

Fighting the Opioid Crisis

Republican senators in states particularly affected by the opioid drug crisis have expressed concerns about cuts to Medicaid and have pushed to add more funding to fight the problem. The current version of the bill provides $2 billion in federal grants to states next year, while the revised bill is expected to include a $45 billion fund.

Funding Planned Parenthood