show me the money
Rule #1 in playing or studying politics: Follow the money. It will tell you who's doing what, who wants what, and, very often, why a politician makes a particular decision.
Texans for Public Justice does a great job of following the money in Texas politics. And there's plenty of it; we live in a state where individuals are basically able to give as much as they want to campaigns. That's a whole 'nother problem.
Texans for Public Justice has a great new report on money in the governor's race: where it's coming from, who's getting it, and what it all means. Check it out.