which is the worst GOP state party

[MT Treasurer]

The PA GOP is an extemely underrated pick here, especially relative to states with a similar partisan lean (or even states far bluer than PA, e.g. VA). Most of their wins have been due to factors well beyond their control, and their repeated underperformances at the state level & inability to put up halfway competent candidates even with a fairly broad bench are quite notable. For such a large and pivotal swing state, their general organization seems to be really poor (contrast that with FL).