Here is the latest Iowa news from The Associated Press

CEDAR RAPIDS, Iowa (AP) — A former prison guard has admitted that he smuggled cellphones into Iowa’s Anamosa State Penitentiary. Federal court records say 29-year-old Garrett Barton of Anamosa, pleaded guilty on Tuesday. Officials say he smuggled the phones into the prison and extorted money from an inmate.

WASHINGTON (AP) — A political action committee that opposes Hillary Rodham Clinton’s presidential bid has aired a TV ad showing the grave of Chris Stevens, the U.S. ambassador killed on Benghazi, Libya. The 30-second ad by the Stop Hillary PAC aired on CNN in selected media markets during Tuesday’s Democratic debate. It also shows photos of Stevens and three other Americans killed during the September 2012 attacks. Democrats on the House Benghazi committee condemned the ad and said Stevens’ image was used without his family’s permission.

RICHMOND, Virginia (AP) — Republican presidential front-runner Donald Trump has a new target for his barbs: Democratic contender Bernie Sanders. Trump told thousands of people at a rally at the Richmond International Raceway in Virginia Wednesday evening that Sanders is a “maniac” who is pushing Democratic front-runner Hillary Rodham Clinton to the left.

ST. LOUIS (AP) — A report card is out on the Mississippi River basin, and the grade is not good: a D+, with the river’s aging transportation infrastructure topping the list of concerns. America’s Watershed Initiative on Wednesday released details of its report card, which assessed categories such as the abundance of clean water, flood control and risk, and recreation.