Here is the latest Iowa news from The Associated Press at 3:40 a.m. CDT

DES MOINES, Iowa (AP) — The Powerball jackpot has grown even larger. There was no jackpot winner in Wednesday night’s drawing, increasing the prize from $348 million to an estimated $415 million. While that’s not chump change, it’s a far cry from the $1.6 billion Powerball prize shared by three winning lottery ticketholders in January, the largest ever jackpot draw in the world.

SPIRIT LAKE, Iowa (AP) — Officials say about 15,000 gallons of untreated wastewater has reached one of Iowa’s Great Lakes. The Iowa Department of Natural Resources says the wastewater was discovered Wednesday morning in a lagoon on West Okoboji Lake, following an electrical failure at a Spirit Lake pumping station. Officials stopped the discharge but some wastewater overflowed through two manhole lids. The wastewater reached Lazy Lagoon, on the northwest shore of the lake.

DES MOINES, Iowa (AP) — Iowa’s governor and two U.S. senators say they will support Donald Trump as the Republican Party’s presumptive nominee for president. Gov. Terry Branstad and Sens. Charles Grassley and Joni Ernst said Wednesday they will support whoever is the GOP nominee. The comments came after Trump became the last remaining presidential candidate for the party.

IOWA CITY, Iowa (AP) — Iowa City police are treating the assault of a black University of Iowa freshman as a possible hate crime. Investigators say 19-year-old Marcus Owens walked into a police station Monday night to report that three young white men had beaten him and called him racial slurs. The attack on the Naperville, Illinois, teen was first reported Tuesday night by WLS-TV in Chicago, and many Iowa students have publicly questioned why they didn’t first learn about the attack from the school.