When Joe Biden first dropped out of the presidential race,

the earliest signs we saw of enthusiasm for Kamala Harris.

The first indications that she might change

the fundamental dynamics of this race

were these headlines.

Tens of thousands of black women

mobilized to support Kamala Harris.

We were built for this moment.

Black women rally around Harris.

When we vote, we make history. Black female leaders rally around Kamala Harris.

The very same day that President Biden announced he was withdrawing from the race,

a group called Win with Black Women held an organizing call that was quickly flooded with support.

40,000 people logged on putting the online meeting at capacity, while another 50,000 stream the event from other platforms.

Now tonight that same group, when with Black Women, is holding another major event for

Kamala Harris, this time with the help of one of her most powerful

surrogates.

Let's all choose Kamala Harris! Hello Harris supporters logged on to an online rally with Oprah Winfrey and

Kamala Harris including some very high profile supporters. There's Brian

Cranston.

Hey Brian. Hello, hello, hello.

Chris Rock is in the house.

Ben Stiller, Jennifer Lopez, Tracey Ellis Ross.

...