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

DES MOINES, Iowa (AP) — Iowa legislators have approved a bill banning most abortions once a fetal heartbeat is detected, propelling the state overnight to the front of a push among conservative statehouses jockeying to enact the nation’s most restrictive abortion regulations. The bill now awaits the signature of anti-abortion GOP Gov. Kim Reynolds. Backers of the legislation hope an influx of conservative judicial appointments under President Donald Trump could put the question on track to challenge Roe vs. Wade.

CARLSBAD, N.M. (AP) — Students across the U.S. participated in a school walkout Wednesday to support gun ownership. The walkout was organized by New Mexico student Will Riley. Riley said in the days before the walkout that about 300 schools planned to participate. The movement was called “Stand for the Second,” aiming to raise awareness of Second Amendment rights. Walkouts were also reported in schools in Iowa, Michigan, Montana, New York and North Carolina.

DES MOINES, Iowa (AP) — Republican leaders in control of the Iowa Legislature say they’re still writing a final version of an expansive tax cut bill they plan to vote on within days. Senate Republicans told reporters Wednesday they’re not sure when a formal bill will be released. Those remarks came shortly before a Senate tax-writing committee had a procedural vote to advance a tax bill without updated details. Senate Republicans say they plan floor votes Saturday.

BLOOMFIELD, Iowa (AP) — Authorities say they have completed an investigation into the case of a woman found dead in a burned-out car last January and determined her death was a suicide. The Davis County sheriff’s office and Iowa Division of Criminal Investigation announced Wednesday that an autopsy showed 63-year-old Sharon Moritz died of probable smoke inhalation and thermal injuries. They ruled her death a suicide. Moritz lived in Northwood but had family in the Davis County area of southeast Iowa.