It should be pointed out that the Republican nominee for AG will either be:
None of these Republicans are particularly strong candidates (in the context of Republicans in Mississippi). With a good candidate, the Democrats could have put up a fight to hold this office, but nobody other than Collins bothered to run.
Mississippi should stagger the statewide elections away from the legislative and District Attorney elections. There are plausible candidates in both parties for statewide office who don't run because they don't want to risk their current job to go for it. This is especially bad for Democrats, since they know they'd be giving up their current job for a longshot chance.