SIOUX CENTER - During a bus tour stop in Sioux Center, Iowa last night, Senator Ted Cruz expressed support for the Renewable Fuel Standard (RFS) through 2022. Responding to a question from an ethanol investor from Iowa about whether he would allow the landmark energy program to continue through its current expiration in 2022, Sen. Cruz responded by expressing support for the RFS through 2022. Senator Cruz also expressed passionate support for breaking through the so-called "blendwall." That "blendwall" makes it illegal for ethanol to expand its market penetration, and I intend to eliminate the EPA blendwall to get rid...