The states have never expressly constitutionally delegated to the feds the specific power to regulate, tax and spend for abortion purposes.
In fact, using broad language, a previous generation of state sovereignty-respecting Supreme Court justices had clarified limits of the fed’s powers as evidenced by the following excerpts.
“Congress is not empowered to tax for those purposes which are within the exclusive province of the States.” —Justice John Marshall, Gibbons v. Ogden, 1824.
”From the accepted doctrine that the United States is a government of delegated powers, it follows that those not expressly granted, or reasonably to be implied from such as are conferred, are reserved to the states, or to the people. To forestall any suggestion to the contrary, the Tenth Amendment was adopted. The same proposition, otherwise stated, is that powers not granted are prohibited [emphasis added].” —United States v. Butler, 1936.
The Left doesn’t care about those provisions.