Tonight breaking news on President Biden's health, President diagnosed with COVID just before addressing a major Latino voter event in a key swing state.

That comes to be lingering questions about his health and what he said about his plans to keep running.

The news comes following a new high profile fall for him to exit the race.

J.D. Vance's first Republican National Convention is as its vice presidential

nominee, his selection, signaling the possible future of the party.

Our look into his rapid rise to former President Trump's running mate, the sharp contrast

Vice President Harris is already drawing. Plus the new timeline of when the Secret Service

spotted the would-be assassin at this weekend's rally.

And more new details, his visit to the site days before, and images tonight showing the transmitter

found next to the shooter's body. What it was designed to do.

I just in Senator Bob Menendez intends to resign after being found guilty on all

counts. Flash flood emergency homes and businesses and bridges washed away in the Ozarks and the sudden deadly deluge in the northeast. Mystery abroad, two Americans dead after a possible poisoning in a luxury hotel in Thailand.

What we're finding, plus the chilling image of the crime scene.

Speaking out, NFL legend Terrell Davis saying he was arrested and humiliated

aboard a United flight in front of his children after asking for a cup of ice.

This is NBC Nightly News.

Reporting tonight from the Republican National Convention in Milwaukee,

here is Lester Holt.

And good evening from Milwaukee, we begin with the breaking news that President

Biden has tested positive for COVID after experiencing symptoms today. The news

coming in after Mr Biden spent much of this day campaigning in Las Vegas.

He was seen moments ago boarding Air Force One not dawning a mask.

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