Let's try it this way- Back in 1860 I am a free negro from the great state of Michigan. I have papers from the Great State of Michigan saying I am a free negro. I accompany some lumber buyers to Kentucky, a slave state with slavery in it's state Constitution. Kentucky doesn't have to have a system to free it's slaves like Michigan does, howsomever it has to recognize me as a free negro even if their State Constitution has slavery of negroes is legal.
Now if the Great State of Kentucky feels this judge has violated the Constitution by all means they should call for his impeachment- but they won't as it will end with the State definition of marriage being called unconstitutional. I imagine this is but a step in doing just that.
FYI, the Judge is a federal one, not state one. He upholds the Federal Constitution, not the State one with the unconstitutional definition of marriage...
eace