The Trump administration is moving to allow year-round sales of gasoline with higher blends of ethanol, a boon for Iowa and other farm states that have pushed for greater sales of the corn-based fuel.
On a Tuesday trip to Iowa, President Donald Trump announced he is lifting a federal ban on summer sales of high-ethanol blends.
Earlier at the White House, Trump said: "It's an amazing substance. You look at the Indy cars. They run 100 percent on ethanol." He said he wants more energy production and to help farmers and refiners.
The long-expected announcement is something of a reward to Iowa Sen. Chuck Grassley, who as Senate Judiciary Committee chairman led a contentious but successful fight to confirm Brett Kavanaugh to the Supreme Court.
Farm state producers of soybeans and other commodities have been impacted by rounds of tit-for-tat economic trade tariffs between the U.S. and China.