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

DES MOINES, Iowa (AP) — Iowa delegates have helped Hillary Clinton become the Democratic Party’s nominee for president. Thirty Iowa delegates, including seven superdelegates, cast votes Tuesday for Clinton at the Democratic National Convention in Philadelphia. The votes during a scheduled roll call ensured Clinton became the first woman to be nominated for president of a major U.S. political party.

DES MOINES, Iowa (AP) — A crude oil pipeline that will cut across Iowa has received the final federal permit approvals needed to proceed with construction. Documents posted by the Iowa Utilities Board Tuesday show the U.S. Army Corps of Engineers approved 60 river crossings in Iowa, a decision pipeline opponents hoped to stop.

DES MOINES, Iowa (AP) — The Powerball jackpot has soared to $422 million thanks to nearly three months without a winner of the big prize. If anyone matches the five balls and red Powerball in Wednesday night’s drawing, it will be the game’s first jackpot winner since May 7. A jackpot winner could opt for a $422 million annuity paid out over 29 years or a $291 million lump sum. The prize would rank as the nation’s 11th largest.

DES MOINES, Iowa (AP) — Democratic lawmakers are continuing to challenge Iowa health officials on the effectiveness of the state’s newly privatized Medicaid program. Members of the Senate Human Resources Committee listened to a presentation Tuesday from the Iowa Department of Human Services on newly released performance data on the state’s Medicaid program. The health care program for poor and disabled residents switched to private management on April 1.