The U.S. Senate is set to vote on Tuesday on a bill to enshrine federal protections and expand insurance coverage for fertility treatments, days after Republican former President Donald Trump surprised supporters by saying he would support such a law.

Election season is heating up, and at the center of the debate are reproductive rights, with particular attention to in vitro fertilization. Two pieces of legislation under their respective political parties failed to pass.

The legislation, sponsored by Democratic Sen. Tammy Duckworth, would have required that all individual and group health-insurance plans that offer childbirth coverage also provide coverage for IVF. The bill did not include any exemptions for insurance plans provided by employers who have religious or other moral objections to IVF,