I didn’t read the whole article. But as a Texan I certainly don’t support oil subsidies, and while I’m all for a successful oil industry, I wouldn’t base my vote for a presidential candidate based on just that. So much attention goes to Iowa and it seems they hold the corn subsidy up as a bribe to the candidates.
I’ve taken an active part in every presidential year Iowa caucus since the GOP started the presidential preference vote in 1976. I never met anyone there who would admit to having changed their preference for president based on fuel ethanol support.
The Iowa legislature has several times considered requiring a higher percent of ethanol than the Feds require, and turned it down each time.
Iowa will grow almost more corn than anyone can use regardless of fuel ethanol.