Celebrities React to Hillary Clinton's 'Milestone' Victory Clinton is America's first female presumptive nominee for president.

 -- The stars are reacting to Hillary Clinton's historic victory Tuesday, when she became America's first female presumptive presidential nominee for a major party.

Clinton reached the delegate threshold needed to clinch the Democratic nomination on Monday night with new commitments from superdelegates. On Tuesday, she won four of six state contests, further solidifying her victory. She celebrated the "milestone" at a rally in Brooklyn.

"Thanks to you, we've reached a milestone," Clinton said during a speech in Brooklyn. "Tonight's victory is not about one person. It belongs to generations of women and men who struggled and sacrificed and made this moment possible."

Before her speech, she told ABC News’ David Muir in an exclusive interview, "It is, of course, symbolic, but symbols mean something, and symbols can often can spark hope and action in people, particularly young people."

But it wasn't just young people celebrating Clinton's achievement.

Today, Barbra Streisand wrote in a statement, "I feel a tremendous rush of pride because this is a woman who is more than qualified to be president. Isn't it interesting how a barrier seems insurmountable -- until it comes down? I hope girls across the country are thinking, 'That could be me.' And like I said after the first woman got a best director Academy Award, it's about time!'

Others took to Twitter to express their excitement.

A lot of little girls are in bed right now dreaming for the first time, without limits. You broke the mold @HillaryClinton ???? — KATY PERRY (@katyperry) June 8, 2016

Proud to support @HillaryClinton! She's making history not for herself, but for women everywhere! #ImWithHer — Christina Aguilera (@xtina) June 7, 2016

I've never been prouder to have a woman card. @HillaryClinton — Ellen DeGeneres (@TheEllenShow) June 8, 2016

Chloe Grace Moretz posted a series of tweets.

MADAME PRESIDENT HERE WE COME !!!!! @hillaryclinton — Chloë Grace Moretz (@ChloeGMoretz) June 8, 2016

To live a day in which my first vote is for a female democratic nominee to become our PRESIDENT of the United States pic.twitter.com/TjDm71Xn4W — Chloë Grace Moretz (@ChloeGMoretz) June 8, 2016

Cher couldn't contain her enthusiasm.

WHEN I was young,Didn’t Think woman COULD B PRESIDENT??

THOUGHT IT WAS AGAINST LAW??LAST NITE I CALLED HILL“MY PRESIDENT”

I THINK I’M 1ST 1?? — Cher (@cher) June 8, 2016

Watching Hill & Tears are in my eyes????I’m So proud of this Moment??Im SO Proud Of Her….

SAY WHAT YOU WILL…

THE CHICK’S A WARRIOR?? — Cher (@cher) June 8, 2016

Nor could her son, Chaz Bono.

With tears in my eyes and joy in my heart, I revel in this historic moment I waited 8 years to see. @HillaryClinton #ImWithHer Proudly! — Chaz Bono (@ChazBono) June 8, 2016

Jaime King celebrated the moment with her son.

Earlier, she congratulated Clinton on her victory.

CONGRATS DEAR @hillaryclinton THANK YOU for letting me & all women be with you & dream BIG! #imwithher #historymade pic.twitter.com/OfsFq8w004 — Jaime King (@Jaime_King) June 8, 2016

Debra Messing also celebrated with her son.

A lot of little girls are in bed right now dreaming for the first time, without limits. You broke the mold @HillaryClinton ????

Proud to support @HillaryClinton! She's making history not for herself, but for women everywhere! #ImWithHer — Christina Aguilera (@xtina) June 7, 2016

I've never been prouder to have a woman card. @HillaryClinton — Ellen DeGeneres (@TheEllenShow) June 8, 2016

Chloe Grace Moretz posted a series of tweets.

MADAME PRESIDENT HERE WE COME !!!!! @hillaryclinton — Chloë Grace Moretz (@ChloeGMoretz) June 8, 2016

To live a day in which my first vote is for a female democratic nominee to become our PRESIDENT of the United States pic.twitter.com/TjDm71Xn4W — Chloë Grace Moretz (@ChloeGMoretz) June 8, 2016

Cher couldn't contain her enthusiasm.

WHEN I was young,Didn’t Think woman COULD B PRESIDENT??

THOUGHT IT WAS AGAINST LAW??LAST NITE I CALLED HILL“MY PRESIDENT”

I THINK I’M 1ST 1?? — Cher (@cher) June 8, 2016

Watching Hill & Tears are in my eyes????I’m So proud of this Moment??Im SO Proud Of Her….

SAY WHAT YOU WILL…

THE CHICK’S A WARRIOR?? — Cher (@cher) June 8, 2016

Nor could her son, Chaz Bono.

With tears in my eyes and joy in my heart, I revel in this historic moment I waited 8 years to see. @HillaryClinton #ImWithHer Proudly! — Chaz Bono (@ChazBono) June 8, 2016

Jaime King celebrated the moment with her son.

Earlier, she congratulated Clinton on her victory.

CONGRATS DEAR @hillaryclinton THANK YOU for letting me & all women be with you & dream BIG! #imwithher #historymade pic.twitter.com/OfsFq8w004 — Jaime King (@Jaime_King) June 8, 2016

Debra Messing also celebrated with her son.

With tears in my eyes and joy in my heart, I revel in this historic moment I waited 8 years to see. @HillaryClinton #ImWithHer Proudly! — Chaz Bono (@ChazBono) June 8, 2016

Jaime King celebrated the moment with her son.

Earlier, she congratulated Clinton on her victory.

CONGRATS DEAR @hillaryclinton THANK YOU for letting me & all women be with you & dream BIG! #imwithher #historymade pic.twitter.com/OfsFq8w004 — Jaime King (@Jaime_King) June 8, 2016

Debra Messing also celebrated with her son.