Just days after Gov. Ron DeSantis signed a controversial law making it harder to pass ballot initiatives, the Florida Senate is using the law to try to block a proposed constitutional amendment that would expand Medicaid coverage.

Senate attorneys filed a six-page document Saturday at the Florida Supreme Court, arguing that part of the new law dealing with required petition signatures should scuttle the proposed Medicaid amendment, which could go on the 2022 ballot.

The Senate and House have contended since November that the Supreme Court should reject the Medicaid proposal, which is backed by the political committee Florida Decides Healthcare. But the Senate argued in Saturday's filing that the new law, signed Wednesday by DeSantis, bolsters its case.