Which flimsy reason are you talking about? I see an indictment that lists charges for several federal crimes. I’m still thinking you must be looking at something different. Where are you seeing yours?
The justification is right near the top. It says the State of Alabama recieves more than $10K in federal assistance.
There is no reason whatsoever for the feds to stick their nose into this. They could and should however, arrest most of the US COngress and Senate for taking ‘bribes’ every bit as egregious and then some, to vote the way they do.