Mississippi law says that a person who votes in a party's primary must support the winner of that primary in the general election. For many years (long before this election), the Missisippi Attorney General's office has issued opinions that that law is unenforceable and cannot be used to challenge voters. If McDaniel does press that issue, it will bite him back, because it also invalidates the votes of all of the McDaniel voters who don't intend to vote for Cochran if he is declared the winner of the primary.
I don’t care what the AG’s opinion is - if its a law on the books, then I would hope the courts would uphold it. Sounds like some of bammy’s way of doing things - pick and choose the laws you want to enforce and ignore those you don’t. Sounds like you are a Cochran supporter. McDaniel won this if the voting had been fair and it wasn’t.