Here is the latest Iowa news from The Associated Press at 3:30 a.m. CDT

UNDATED (AP) — Joe Biden is making clear to voters that he is defending the national health care law known as “Obamacare.” The Democratic presidential candidate says he’s opposing anyone who wants to scrap the health care law. Instead, Biden says Obamacare should be the foundation for changes, including a government insurance plan known as the public option to existing exchanges that sell private insurance. Biden is set to discuss health care on Monday at a forum in Iowa.

CHARLES CITY, Iowa (AP) — The Floyd County fair will move forward this week despite damage to several buildings from a tornado that passed through the area earlier this year. The Waterloo-Cedar Falls Courier reports the fair is ready to begin as planned on Wednesday, and only a few modifications are needed because of the storm damage. A tornado destroyed five buildings on the fairgrounds in May and damaged several others.

DES MOINES, Iowa (AP) — Authorities say a 12-year-old boy died after being thrown from an off-road vehicle he was riding in that rolled over. The Des Moines Register reports that the Jackson County Sheriff’s office is investigating the Saturday afternoon crash in a rural area outside Bellevue, Iowa, that happened during a gathering of off-road vehicles.

OMAHA, Neb. (AP) — Emergency response planners will gather in Omaha next month to work on improving the way they plan for disasters. The Environmental Protection Agency is sponsoring the conference from Aug. 8-10 for the region that includes Nebraska, Iowa, Missouri and Kansas.