If we're going to use economics as a measure of a state's success, which is essentially boiling down the worst part of the American psyche, but w/e the disciples of God Money are legion and it's not a useless measure of power by any means...
It's easy to get the relationship between "state level" economics and "state level" political leanings backwards. These are states, they do not print their own money. They are limited by the economic output of their industries and whatnot. Liberal spending policies are nice, but they come after not before economic wealth presuming generally well intentioned and generally effective governance on the whole. Having wealth and not spending it is miserly, it's destructive. Not having wealth and spending it is spendthrift, and it's destructive. The states that have more liberal spending policies can afford to, those that cannot cannot. It's generally why Rockefeller Republicans reside where they do in their party. It's generally why blue collar Democrats reside where they do in their party. It's why political leanings and state GDPs per capita, unless thrown by a significant input, track the way they do.