It's It is a momentous night for America and the night is going to happen in Philadelphia,

the birthplace of America, the backdrop for history-making presidential debate tonight.

We are standing by to see Donald Trump and Kamala Harris on stage together,

two candidates who have actually never met face-to-face before. Soon they will be together.

Just them, no audience for the very first time.

And a welcome to all watching tonight.

I'm Aaron Burnett on this special edition of Out Front.

And I'm Jake Tapper in Philadelphia and we're overlooking Historic

Independence Hall. We're just steps away from the National

Constitution Center where the Harris Trump debate will begin in less than two hours.

You can see it live here on CNN.

This will be the very first time, a sitting vice president and a former president go head to head in a presidential debate.

Another extraordinary aspect of tonight's face-off

which comes only about two months since the Biden-Trump debate on CNN transformed the race.

Our political team is out in force to set the stage

for the 90 minute debate

and to break down the strategies

and the stakes

Harris campaigns.

First, let's go to CNN's Priscilla Alvarez, also here in Philly

covering the Harris campaign.

And Priscilla, you have some new information

...