Beshear has to campaign somewhat with in the east with Rocky. Can't ignore that part of the state.
And he needs to energize the Edelen base and the Sanderites by campaigning with Bernie.
That would be stupid
May be not so stupid concerning Sanderites (economic populism still has some popularity in Kentucky, including it's Eastern part), but surely not Edelen base (too easy to get characterized as "liberal city slicker" and cause massive bleeding of votes in the East)
Campaigning with any national democrats in Kentucky is astoundingly stupid