Hickenlooper said he wishes Colorado hadn't legalized pot.
He sort of speaks out of both sides of his mouth on this issue. I've seen him admit in a documentary that legalization is going pretty well and that a lot of his initial fears turned out not to be true.
He seems to still be concerned that kids will "get the wrong message" about pot, however teen use is down since legalization, so the early data contradicts his fear. Crime is down too.
If he wanted to be consistent, he would also be advocating that cigarettes and alcohol should be illegal so kids don't "get the wrong message" about those substances either.
This is a Democrat politician though...