He ran the most competent state exchange in ObamaCare.
I like the idea of having a Democrat from a red state give the response, but Beshear is retired. I am not sure how much this could help the Democratic party in 2018.
I think he's a good choice. Because what anyone who bothers to watch will see, if Beshear is any good at all, is a bitingly sharp contrast between a dictatorial man-baby with the IQ a deranged varmit and an actual old while male politician.
Having another older white male respond to the Menace from Mar-a-Lago will highlight his gross unfitness for the office in a way no one else could.