As I recall, he was going to call it quits until the RINOs needed him to stay and save the seat from the ‘Tea Party’. He’s a puppet.
He’s there for twelve months, retire, and allow the governor to appoint himself as the next senator. As messy as this got....they’ve instead screwed up Republican attraction in Mississippi for a decade. You can put up a bogus ad now....two Republicans sitting in a pool-hall....talking up who they will bribe for votes, and everyone will get a bad taste in their mouth from it.