Gov. Katie Hobbs (D-AZ) is once again refusing to debate a Republican challenger, reviving a question that could become increasingly difficult for incumbent governors to avoid: Can they get away with avoiding a face-off against their opponent, a staple of modern statewide campaigns? Hobbs says she won’t debate Rep. Andy Biggs (R-AZ), the GOP gubernatorial nominee. Hobbs took the same approach four years ago, declining to debate Kari Lake in the …