Then lost two, then one two and then lost 2. The Presidential argument is rough. The point is that the GOP has moved much farther right than the Democrats have moved to the left. Also the takeover of State government has been very recent not something from the 1970's. Finally, Kentucky and Colorado aren't hard-left states. Lets see how Republicans hold onto state governments over the next couple of elections.
What does it matter if the takeover of state governments is recent? Isn't your argument that the GOP has moved right, and stayed right? Both CO's and KY's legislatures are divided. Colorado is definitely moving left, and has been doing so for some time. As for Kentucky, it just elected an "unelectable" candidate governor, voting GOP for just the second time since 1970. The Democrats who hang around the legislature do so in many cases by positioning themselves as far to the right as the Republicans and drawing districts with radically uneven populations (this also explains why the WV legislature only just flipped Republican). Meanwhile, the pro-market agendas of GOP legislatures in MI, WI, OH, etc., do not seem to have harmed the GOP majorities in the legislatures of those states. The Democrats struggle there without be able to count on mandated union dues that go into their pockets. Voters in Michigan, in particular, can see what Democratic leadership does to cities, and have wisely chosen a different path.
Lets see how the next couple of Presidential elections go. The truth is that Democrats struggle in turning out the vote in non-Presidential elections. The GOP should have had a cakewalk for the 2016 election but it is looking less and less like that is true.
It's not the GOP's fault that its voters are more responsible at performing their civic duties. That's like saying that it isn't fair that ND's home games are always sold out and Purdue's aren't.
Elections are never cakewalks- and when the economy is comparatively strong, as it is now, voters don't automatically switch parties, even after 8 years with one party, particularly when government is divided.