The Koch brothers have bankrolled a broad attack on progressive government programs. Their grandfather's history in Texas helps explain why. Charles and David Koch are the most powerful right-wing billionaires of our time. They have spent hundreds of millions bankrolling a broad attack against Social Security, organized labor, financial regulations, environmental protection and public education. The brothers plan to spend at least $200 million trying to elect right-wing, anti-government Republicans in 2012, according to Politico. They seem hell-bent on dragging America back to the dark days of unregulated capitalism. The history of their grandfather in Texas may help explain why.