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

IOWA CITY, Iowa (AP) — A judge has ruled that the University of Iowa must pay nearly $21.5 million, plus interest, to a plumbing contractor for work done on the new Hancher Auditorium and university’s Stead Family Children’s Hospital. Television station KCRG reports that the Johnson County District judge made the decision this week after the Iowa Board of Regents sought to have an arbitrator’s decision favoring Modern Piping Inc., of Cedar Rapids, overturned.

WATERLOO, Iowa (AP) — Police say two teenagers have been charged in the 2017 shooting death of a Waterloo man. The Courier reported Thursday that police have arrested a 15-year-old boy and a 17-year-old boy. Both are charged with first-degree murder and first-degree robbery in the killing of 39-year-old Cedric Roy Craft. Police were called to Craft’s home on Dec. 11, 2017, for a report of a break-in. Arriving officers found Craft with a single gunshot wound to the head.

DES MOINES, Iowa (AP) — Tax returns of Iowa Democratic candidate for governor Fred Hubbell show he and his wife earned just over $3 million last year from a variety of sources including capital gains on the sale of stock, income from businesses in which he owns an interest, stock dividends and payment for serving as a director on corporate boards. Hubbell, a 67-year-old retired business executive, says he’ll release his tax forms annually if he’s elected governor in November.

NEW YORK (AP) — The political network created by the billionaire Koch brothers is announcing plans to support eight House Republicans. The sprawling conservative organization on Thursday pledged its financial resources and army of activists to help re-elect several vulnerable congressmen deemed “principled” conservatives. The announcement comes a month after President Donald Trump assailed the Koch brothers as “a total joke in real Republican circles.”