In particular, whatever politicans 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.”