President Trump said Tuesday in Iowa that his administration will allow a higher-ethanol gasoline blend known as E15 to be sold permanently, a move that could boost the state's corn farmers and help lower gas prices.

Top officials from ICE, Customs and Border Protection and U.S. Citizenship and Immigration Services are set to testify before the House and Senate Homeland Security committees next month, following turmoil over their enforcement actions in Minnesota.

Two federal officers fired shots during an encounter that killed ICU nurse Alex Pretti in Minneapolis, a Customs and Border Protection official told Congress in a notice sent Tuesday.