All four of the first-term members of the House of Representatives are US citizens and all but one of them were born in the United States.
"Sadly, this is not first nor will it be the last time we hear disgusting, bigoted language from the president", Tlaib said, calling for impeachment proceedings against Trump to begin.
"This is a president who has said "grab women by the p***y", this is a president who's called black athletes "sons of b***hes", this is a president who has called people who come from black and brown countries 's**tholes", Omar said, referring to comments Trump made in January 2018 in which he called El Salvador, Haiti and the African continent "s**thole countries".
Although Trump did not name the politicians, he was nearly certainly referring to the four freshmen representatives, most of whom the president has criticised repeatedly since they took office earlier this year.
Trump did not identify the lawmakers by name in his Sunday tweets, but he appeared to refer to representatives Alexandria Ocasio-Cortez of New York, Ilhan Omar of Minnesota, Ayanna Pressley of MA and Rashida Tlaib of MI.
Trump lashed out at the lawmakers in response to their continued criticism against his immigration policies.
"We don't leave the things that we love, and we love this country and that means we propose the solutions to fix it", Ocasio-Cortez said during Monday's press conference.
Tlaib and Omar repeated their calls for Trump to be impeached.
Asked if Trump's comments were racist, the top Republican in the House, Kevin McCarthy of California, said: "This is about ideology".
Such a resolution could put Trump's fellow Republicans in Congress in an awkward position, forcing them either to vote against their party's leader, who has strong support among conservatives, or effectively to defend his statements.
Omar blasted Trump for launching a "blatantly racist attack" on four women of color who were "duly elected" members of Congress.
Trump has a history of what critics consider race-baiting.
"Whether it's happening in chatrooms, or it's happening on national TV, and now, it's reached the White House garden", she said.
While he asserted at the White House event that he didn't call out the congresswomen by name, moments later Trump did just that, singling out Omar.
The move came one day after Trump ignited a Twitter war with several minority Democratic lawmakers. She is the wife of Senate Republican leader Mitch McConnell, who had made no comment on Trump's attacks as of midday Monday. "The president is not a racist", he told reporters.
With an uneven response from leaders on Capitol Hill, it fell to rank-and-file Republicans to deliver some of the more critical rebukes.
Former Vice President Joe Biden, the Democratic presidential front-runner, tweeted Sunday that Trump "continues to spew hateful rhetoric, sow division, and stoke racial tensions for his own political gain".
Trump promised as a candidate to build a wall along the U.S. -Mexico border and that Mexico would pay for it. As president, very little has happened on wall construction and Mexico has resolutely refused to pay for a wall.
The women were responding to a series of racists tweets and comments by the U.S. president on Sunday and Monday in which he told the congresswomen to go back to where they came from. "Come back if you want, don't come back, it's OK too".
Trump nearly certainly was referring to the four new lawmakers - Ocasio-Cortez, Omar, Pressley and Tlaib - who are among the most outspoken against Trump administration policies and have made headlines in their ongoing divisions with Pelosi.
Senator Susan Collins, the centrist Maine Republican who faces a potentially tough reelection race alongside Trump in 2020, called the president's comment "way over the line".
Ocasio-Cortez also took aim at Trump over the weekend.
Ebola confirmed in DRC city of Goma, Rwanda on alert
Mistrust has been high in a region that had never faced Ebola before and the attacks by rebel groups have undermined aid efforts. A family who fell ill while in Congo did cross the border into neighbouring Uganda where two of them then died.
Smart home security needs to be a priority reveals Mirai.
This is why they are able to potentially cause so much harm, and why they are such a possibly lucrative target for attacks. Manufacturers are also focussed on keeping costs down in order to attract consumers, and security is not cheap.
USA And Universal Health Care
This is because the each state has its own different set-up on all levels socially, financially and geographically. Each state has populations equivalent to nations with universal coverage hence size can never be a limiting issue.