Does that mean he was legally elected to office? I don't think so.
Rumor has it that he even owns/owned shares in the company that put up the billboards. If that is true, he paid himself for the illegal billboards. That's what a democrat in New Jersey did. At a forum for all judicial candidates, Greer did a dodge and weave about his billboards and also about his eyesight.
The current administration will not lay a glove on Greer imo but there is no statute of limitations on murder, judge or no judge. Greer's wary of South Dakota's chapter of Jail4Judges. I wonder why.