Iowa biofuel advocates applauded as President Donald Trump, during a visit last week to Cedar Rapids to discuss damage from the derecho, committed to talking with the Environmental Protection Agency (EPA) about the agency’s consideration of nearly 70 small refinery exemptions which date back at far as 2011.

“We’re pleased the president has committed to talking with the EPA,” said Monte Shaw, executive director of the Iowa Renewable Fuels Association (IRFA)....