The bill's managers are working to prevent any such “poison pill” amendments, however, to smooth the way for passage of the legislation.

 

But the biggest challenge for corn growers and the ethanol industry may well be in the first-in the-nation Iowa caucuses on Monday, not in the Senate debate. Many in the state's ethanol industry and corn growers have been working into the final days to stop Texas Sen. Ted Cruz, an opponent of the Renewable Fuel Standard, from winning the Republican caucuses

 

Cruz's support has been slipping in recent weeks, and the final Des Moines Register-Bloomberg Politics poll, released Saturday night, showed Donald Trump leading him, 28 percent to 23 percent. Florida Sen. Marco Rubio was third at 15 percent. On the Democratic side, the poll showed Hillary Clinton up by just three points, 45 to 42 percent, over Vermont Sen. Bernie Sanders.

 

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