The four progressive freshman congresswomen who have come to be known as "the Squad' reacted on Sunday to President Donald Trump seemingly suggesting they "go back" to the countries they "originally came from" instead of telling Americans "how our government is to be run."

Although he did not mention any lawmakers by name, it was widely assumed his tweets were referring to Reps. Alexandria Ocasio-Cortez, D-N.Y.; Ilhan Omar, D-Minn.; Ayanna Pressley, D-Mass.; and Rashida Tlaib, D-Mich.

All four are American citizens. Ocasio-Cortez was born in New York City, Pressley was born in Cincinnati and Tlaib was born in Detroit. Omar was born in Somalia. Her family fled that country's civil war when she was 8 years old and spent four years in a refugee camp in Kenya before arriving in the U.S. and settling in Minneapolis in 1997, according to her biography.

"So interesting to see 'Progressive' Democrat Congresswomen, who originally came from countries whose governments are a complete and total catastrophe, the worst, most corrupt and inept anywhere in the world (if they even have a functioning government at all), now loudly and viciously telling the people of the United States, the greatest and most powerful Nation on earth, how our government is to be run," Trump tweeted.

The four women were elected in November and are considered to be some of the most liberal Democrats in Congress and have been some of the president's most outspoken critics on Capitol Hill.

They have recently had some heated exchanges with House Speaker Nancy Pelosi, D-Calif., over differences in policy and political style. Trump appeared to reference those divisions, tweeting that "Pelosi would be very happy to quickly work out free travel arrangements" for the congresswomen to whom he was referring.

Pelosi after quarrels with AOC, Tlaib:'You got a complaint? You come and talk to me about it'

More:Alexandria Ocasio-Cortez, Ilhan Omar and Rashida Tlaib fire back at Nancy Pelosi's 'Twitter world' quip

"I reject @realDonaldTrump’s xenophobic comments meant to divide our nation. Rather than attack Members of Congress, he should work with us for humane immigration policy that reflects American values," Pelosi fired back in response to Trump.

Here is how the four congresswomen responded to Trump's tweets:

Ilhan Omar

"Mr. President, As Members of Congress, the only country we swear an oath to is the United States," Omar tweeted. "Which is why we are fighting to protect it from the worst, most corrupt and inept president we have ever seen."

"You are stoking white nationalism bc you are angry that people like us are serving in Congress and fighting against your hate-filled agenda."

Omar has sparked anger with her rhetoric criticizing the Trump administration and U.S. foreign policy since taking office. And she caused an uproar with her criticism of Israel and the influence of the pro-Israeli lobby, which many said played into anti-Semitic tropes.

Trump's tweets on Sunday echoed comments made last week by Fox News host Tucker Carlson who accused her of not being "grateful" for being welcomed into the U.S. and of instead having "undisguised contempt for the United States and for its people."

"I believe as an immigrant, I probably love this country more than anyone that is naturally born," Omar said while speaking at a Netroots Nation event on Saturday.

Omar said it is because she is "ashamed" that the U.S. continues to "live in its hypocrisy" that she criticizes the government and fights to make the U.S. live up to its ideals.

Rep. Ilhan Omar:Who is the Muslim lawmaker Donald Trump loves to attack?

More:Ilhan Omar calls Tucker Carlson 'racist fool' after he says she proves 'immigration has become dangerous'

Alexandria Ocasio-Cortez

Ocasio-Cortez told Trump "the country I 'come from'" and "the country we all swear to, is the United States."

"You are angry because you can’t conceive of an America that includes us. You rely on a frightened America for your plunder," she said. "On top of not accepting an America that elected us, you cannot accept that we don’t fear you, either."

Ocasio-Cortez is the youngest woman ever elected to Congress and a self-described democratic socialist. Her father is from New York and her mother was born in Puerto Rico, a U.S. territory.

AOC interview:Ocasio-Cortez thinks DHS should be abolished

'A moral imperative':AOC, Bernie Sanders call for climate emergency declaration

Ayanna Pressley

"THIS is what racism looks like," Pressley tweeted along with a screenshot of Trump's remarks. "WE are what democracy looks like.

"And we’re not going anywhere. Except back to DC to fight for the families you marginalize and vilify everyday."

Pressley is the first African American woman to be elected to the Congress from Massachusetts. According to her official biography, she was primarily raised by her mother, a community organizer, in Chicago.

After White House counselor Kellyanne Conway described the four congresswomen's disagreements with Pelosi as a "major meow moment," Pressley tweeted for Conway to "keep my name out of your lying mouth."

Rep. Ayanna Pressley to Kellyanne Conway:'Keep my name out of your lying mouth'

Rashida Tlaib

"I am fighting corruption in OUR country. I do it every day when I hold your admin accountable as a U.S. Congresswoman," Tlaib said in response to Trump's call for the congresswomen to fix the corrupt "places from which they came."

"Detroit taught me how to fight for the communities you continue to degrade & attack," she said.

Tlaib added that she was "proud of my Palestinian roots" and that a "WEAK bully like you never wins."

"This is what America looks like," she tweeted along with an arrow pointing to a photo of herself.

Tlaib parents immigrated to the U.S. from Palestine. She and Omar were the first Muslim women elected to Congress.

Tlaib stirred up controversy quickly after her arrival in Washington, using an expletive and vowing "we're gonna impeach" Trump on the night she was sworn in.

Michigan Democrat Rashida Tlaib on Trump:We're going to impeach the [expletive]

More:President Trump slams Rep. Rashida Tlaib for Holocaust comments