Noting that Reid is/was much worse than McConnell imo, I think that RINO McConnell should be on top of list of reasons to repeal the ill-conceived 17th Amendment.
All that McConnell needs to do to stop the constitutionally undefined EPA dead in its tracks is the following. He needs to point out that not only have the states never delegated to the feds, expressly via the Constitution, the specific power to regulate intrastate environmental issues, but even if the states had delegated such power to the feds, Congress has no constitutional authority to delegate such powers to non-elected federal bureaucrats like those running the EPA.
The 17th Amendment has to go.
How does one repeal a Constitutional Amendment?