It's Thursday, July 18th, and top Democrats are ready to call it. We start here.

Momentum is quickly turning against President Biden.

There is definitely growing uncertainty, especially among top Democrats, about the future

of his campaign.

And right as the President needs all his political strength, he's just received a COVID diagnosis.

Meanwhile at the Republican Convention,

J.D. Vance introduces himself to the country.

I officially accept your nomination

to be Vice President of the United States of America.

What he said and what we should expect from Donald Trump tonight.

And the Secret Service had eyes on the gunman.

They actually saw crooks on the roof about 20 minutes before.

The shocking revelations about the Trump assassination attempt.

From ABC News, this is Start Here. I'm Brad Milkie.

We're going to talk a lot about the Republican National Convention today,

former President Trump speaks later on tonight, but the biggest story of this morning

is what's going on among the Democrats. So you remember yesterday we were telling you

there was this scramble underway to slow down the machinations of the Democratic nomination.

The convention isn't until next month, but some states said that's too late to get Biden on a ballot, so they established this virtual

convention vote as early as next week.

Even when those state requirements went away, they were going to stick with this early nominating contest, which must have been music to President

Biden's ears, right?

...