A former U.S. senator in Colorado sees parallels between billionaire environmentalist Tom Steyer’s meddling in current Senate elections in the state and his hedge fund’s efforts to drain a small Colorado town’s water supply and sell it to the highest bidder. Former Sen. Wayne Allard (R., Colo.) ... In 1995 Tom Steyer descended on Colorado, standing to make millions by exporting the water under the San Luis Valley and selling it to the highest bidder. Draining this particular aquifer would have had disastrous consequences for farms, wetlands and the Great Sand Dunes National Park. Impact from Steyer’s plan would have...