2020 Democrat White House hopefuls reacted angrily to chants of “send her back” targeting Rep. Ilhan Omar (D-MN) at President Donald Trump’s Wednesday evening rally in Greenville, North Carolina.

“It’s clear that Donald Trump is trying to divide us by race and gender. It’s immoral. Our children are listening,” former Vice President Joe Biden wrote on Twitter. “These members of Congress — children of immigrants, just like so many of us — are an example of exactly what makes America great.”

“Four days ago, the President of the United States suggested that four elected members of Congress, all women of color, ought to “go back” to the countries “from which they came.” And every day since he has repeated this ugly, racist refrain,” the 2020 Democrat frontrunner added.

We’ve heard it before throughout our history, but it has no place in America in 2019. It’s clear that Donald Trump is trying to divide us by race and gender. It’s immoral. Our children are listening. — Joe Biden (@JoeBiden) July 18, 2019

“So, Mr. President, I am here to tell you this. This is OUR country: The United States of America. You’ll never understand what makes us strong. And that’s why the American people are going to vote you out of office next year,” he concluded.

So, Mr. President, I am here to tell you this. This is OUR country: The United States of America. You'll never understand what makes us strong. And that's why the American people are going to vote you out of office next year. — Joe Biden (@JoeBiden) July 18, 2019

Sen. Kamala Harris (D-CA) slamed President Trump’s criticism of Omar and chants from the crowd, referring to them as “vile,” “cowardly” and “racist.”

“It’s time to get Trump out of office and unite the country,” added the California Democrat.

It’s vile.

It’s cowardly.

It’s xenophobic.

It’s racist.

It defiles the office of the President.

And I won't share it here. It’s time to get Trump out of office and unite the country. — Kamala Harris (@KamalaHarris) July 18, 2019

Sen. Bernie Sanders (I-VT) tweeted: “Trump knows that when we stand together and fight for racial, social, economic and environmental justice, we have the power to defeat him. So the demagogue is doing what he knows best: Divide and conquer through hate.”

Trump knows that when we stand together and fight for racial, social, economic and environmental justice, we have the power to defeat him. So the demagogue is doing what he knows best: Divide and conquer through hate. His attacks only make us stronger. #IStandWithIlhan — Bernie Sanders (@BernieSanders) July 18, 2019

Sen. Elizabeth Warren (D-MA) said it was important to continue“calling out his racism, xenophobia, and misogyny is imperative.” She also said the president’s remarks show he’s “desperate” to shore up support ahead of the 2020 election.

“This president is desperate. Calling out his racism, xenophobia, and misogyny is imperative. But he’s trying to divide us and distract from his own crimes, and from his deeply unpopular agenda of letting the wealthy and well-connected rip off the country. We must do more,” she wrote. “We must call out those who remain silent. We must initiate impeachment proceedings to hold him accountable. And we must build an unstoppable grassroots movement that resoundingly defeats not just Trump, but complicit Republicans everywhere.”

We must call out those who remain silent. We must initiate impeachment proceedings to hold him accountable. And we must build an unstoppable grassroots movement that resoundingly defeats not just Trump, but complicit Republicans everywhere. — Elizabeth Warren (@ewarren) July 18, 2019

“Tonight on a stage the President returned to bigotry once again. Inciting hatred—it’s what he likes to do,” said Sen. Amy Klobuchar (D-MN) “The words ‘Are there no limits to what he will say or do?’ ring hollow here, until you answer: there is a limit, & it rests with me—stand up, speak out, organize and VOTE.”

Tonight on a stage the President returned to bigotry once again. Inciting hatred—it's what he likes to do. The words “Are there no limits to what he will say or do?” ring hollow here, until you answer: there is a limit, & it rests with me—stand up, speak out, organize and VOTE. — Amy Klobuchar (@amyklobuchar) July 18, 2019

Former Rep. Robert Francis “Beto” O’Rourke (D-TX) claimed the chants are “the product of a president who sees our diversity not as a strength, but as a weakness.”

“I believe in our country. And I believe, together, not allowing our differences to divide us, we will defeat him and everything he stands for,” he added.

These chants don’t happen by accident. They are the product of a president who sees our diversity not as a strength, but as a weakness. I believe in our country. And I believe, together, not allowing our differences to divide us, we will defeat him and everything he stands for. https://t.co/RKZ6PTQM4g — Beto O'Rourke (@BetoORourke) July 18, 2019

Sen. Kirsten Gillibrand (D-NY) posted: “Whether it’s ‘send her back’ or ‘lock her up,’ ‘there has to be some form of punishment’ or ‘grab her by the p***y’—the throughline is contempt for women and anyone who threatens this president’s fragile ego.”

Whether it's "send her back" or "lock her up," "there has to be some form of punishment" or "grab her by the p***y"—the throughline is contempt for women and anyone who threatens this president's fragile ego. He should be afraid. We are his worst nightmare. And we will beat him. — Kirsten Gillibrand (@SenGillibrand) July 18, 2019

Rep. Seth Moulton (D-MA) called the chant “horrific, racist garbage,” before noting that Omar is an American citizen.

This is horrific, racist garbage. Rep. Omar is a Congresswoman and an American. https://t.co/UVg2bCbhx0 — Seth Moulton (@sethmoulton) July 18, 2019

“A tweet. Then a chant. And it won’t stop there. Trump is fueling and feeding off hate. Racism and Islamophobia are stains on humanity and on our country. We stand with @IlhanMN,” New York City Mayor Bill de Blasio wrote.

A tweet. Then a chant. And it won’t stop there. Trump is fueling and feeding off hate. Racism and Islamophobia are stains on humanity and on our country. We stand with @IlhanMN. — Mayor Bill de Blasio (@NYCMayor) July 18, 2019

President Trump’s criticism of Omar and fellow freshman Congresswomen Reps. Alexandria Ocasio-Cortez (D-NY), Rashida Tlaib (D-MI), and Ayanna Pressley (D-MA) at last night’s rally are the latest in a series of blows landed on the far-left lawmakers since challenging on Sunday them to leave the U.S. if they continue to their repeated attacks on the country.

“Tonight I have a suggestion for the hate-filled extremists who are constantly trying to tear our country down,” the president told supporters last night. “They never have anything good to say. That’s why I say, ‘Hey if you don’t like it, let ‘em leave, let ‘em leave.’”