I can; your own state of Nebraska. One chamber is 100% non-partisan, while the other is 100% non-existent.
True. I intended to make note of the Unicameral but decided to avoid stating the non-applicable case.
I think D vs R vote totals of all State Senate and State House elections would be misleading because so many seats are uncontested. Also, only half the senate seats are up in any election as the senators serve 4 year terms.
In terms of explaining the discrepancy, I would put forward this theory. As Kentucky has slowly transitioned to being a Republican state, it has done so from the Federal level in a trickle down fashion to the state and county level. For instance, it is hard to get a Democrat to win a Presidential or Senate election (or US House) in Kentucky, but it is still infrequent to get a Republican governor or state cabinet member elected. I'm guessing that at county level, there are still a higher proportion of Democratic County Judges (Executives) than you would expect if you looked at the county-by-county vote totals for Federal positions. If true, I would infer that this would lead to somewhat of a dearth of natural Republican candidates for the State House of Reps and hence some Democrats face re-election unopposed or against an opponent with no name recognition. Also, there are no term limits for Kentucky legislators, so there are fewer open seats. Thoughts?