In particular, whatever politicians say, the Republican-controlled House has a rider in the FAA authorization bill which requires airports to continue selling leaded fuel for propeller aircraft forever:

The House version of the bill would require airports that receive federal grants to continue selling the same fuels they sold in 2018 in perpetuity.

While the Democratically-controlled Senate requires a phase-out:

The Senate version would require these airports to continue selling the same fuels they sold in 2022, with a sunset date of 2030 or whenever unleaded fuels are “widely available.”

For context, the FAA approved sale of unleaded fuel for all propeller planes last year, and there are local efforts to ban the sale of leaded fuel in locations where the unleaded fuel is now available