Dan Ronan

The race is expected to be among the largest one-day sporting events in the world with nearly 350,000 spectators in both the infield and the grandstand.

This is NPR News.

Live from NPR News, I'm Dan Ronan.

President Trump says an agreement with Iran, which includes opening the critical Strait of Hormuz, is, in his words, largely negotiated.

But the memorandum of understanding still needs finalization.

Iran reports the draft is a framework agreement for more negotiations.

NPR's Phil Myrie reports.

The agreement calls for the U.S.

to end the blockade of Iranian ports and for two months of negotiations on the status of Iran's nuclear program.

The Secret Service has a man as dead after he approached a White House security checkpoint Saturday evening and fired several shots at officers.

Agent shot and killed the suspect.

A bystander was also struck.

It's not clear if that person was hit by the gunmen or by the return fire.

President Trump was inside the White House, but the Secret Service says no agents or people it protects were impacted by the shooting.

Ukraine's capital Kiev early Sunday was hit by a Russian air attack shortly after Ukraine warned that Russia may launch a hypersonic ballistic missile.

At least three people were injured.

NPR's Joanna Kasisis reports that Ukraine targeted Russian oil tankers.

Residents in and around Garden Grove, California, are on high alert for a potential waste disaster from toxic, a toxic chemical.

Jill Repligo from California Public Radio has more.

This is NPR.