In the process, they have created a fraught political frame: "racists" vs. "socialists."
Trump's aggressive condemnation of women of color in Congress has allowed House Democrats to mend, for now, their own political divisions as they put the president on record with a resolution condemning his words as racist.
But by pushing the House majority into the arms of the squad of liberal freshman women, Trump also adds to his narrative that Democrats have a "socialist" agenda, a story line he started to bring into focus during his State of the Union address.
"I do think I'm winning the political fight," Trump told reporters outside the White House. "I'm winning a lot."
Whoever is "winning," there was no cooling off Wednesday. Trump continued attacking the quartet during a campaign rally in Greenville, North Carolina, and the crowd responded by chanting, "Send her back!" The House voted on a resolution on impeachment, though a majority of Democrats joined united Republicans in killing the measure.
In all, the current state of affairs offers "a very clear choice," said Ronna McDaniel, the chairwoman of the Republican National Committee.
"The Democrat party is now a socialist party, and these four women have become the de facto speakers of the Democrat House," she said on Fox. "So he's saying, do you want socialism or do you want what we're delivering with higher jobs, higher wages, more jobs, a strong economy."
House Speaker Nancy Pelosi suggested Americans have already heard enough from Trump, with his "disgusting" remarks "denigrating" the nation's values.
"The president knows the arguments that are being made against him and therefore he wants to distract from them," Pelosi said. "Let's not waste time on that," she said. "We're talking about what we're going to do to help the American people."
The four freshmen, in their own appearance together, portrayed the president as a bully who wants to "vilify" not only immigrants, but all people of color. They're fighting for their priorities to lower health care costs, pass a Green New Deal addressing climate change, they say, while his thundering attacks are a distraction and tear at the core of America vales.
"America has always been about the triumph of people who fight for everyone versus those who want to preserve rights for just a select few," said Rep. Alexandria Ocasio-Cortez of New York, perhaps the most recognizable of the newcomers.
"And there is no bottom to the barrel of vitriol that will be used and weaponized to stifle those who want to advance rights for all people in the United States," she said on "CBS This Morning."
Taking a fresh dig at the group, Trump on Wednesday tweeted a new slogan — "One 'squad' under God" — with a video featuring clips of him meeting with law enforcement and military personnel juxtaposed with patriotic scenes, set to Lee Greenwood's "Proud to be an American," which often serves as a soundtrack to his campaign rallies.
The week has already been extraordinary, even by the new standards of the Trump presidency.
In a political repudiation, the Democratic-led U.S. House voted Tuesday to condemn Trump's "racist comments" against the congresswomen of color after he told them to "go back" to their own countries.
The women, Ocasio-Cortez and Reps. Ilhan Omar of Minnesota, Ayanna Pressley of Massachusetts and Rashida Tlaib of Michigan, all were born in the U.S. except for Omar, who became a U.S. citizen after fleeing Somalia as a refugee with her family.
Democrats eased the resolution through the chamber by 240-187, joined by four Republicans and one Republican-turned-independent congressman.
Trump accused the women of "spewing some of the most vile, hateful and disgusting things ever said by a politician" and added, "If you hate our Country, or if you are not happy here, you can leave!"
Republican operatives swiftly dispatched their own attacks on nearly 30 of the House Democratic freshmen who helped take the majority in 2018 by winning seats from areas that Trump also won in 2016. They are seen as the front-liners needed to retain control of the House, and many face tough re-election races in 2020.
"Deranged," read the missives from the National Republican Congressional Committee. The committee is raising money off Ocasio-Cortez as the face of the "socialist" agenda and drawing links to the party's presidential contenders, including Bernie Sanders, Elizabeth Warren and other liberal front-runners.
"This wasn't what people in the Trump districts elected them to do," said Bob Salera, a spokesman for the GOP's campaign committee.
Democrats believe Trump's attacks will have the opposite effect, turning off the suburban voters, particularly women, who helped elect Trump but also turned out for Democrats in last fall and are tiring of it all. Trump tried a similar approach last fall, invoking fearful warnings of "caravans" of immigrants pouring into the U.S., but voters tuned him out to give Democrats control of the House. The party will try again to coax voters away from Trump's vision of America.
But Democrats also know they now need to return to their core campaign messages — lowering health care costs, conducting oversight of the administration — or risk having Trump define them and the 2020 candidates.
Behind closed doors Wednesday, party leaders laid plans for reviving those issues, starting with an event next week to mark their accomplishments so far on the 200th day of the House Democratic majority, and into the summer August recess campaigns.
"I'm trying to represent my district, a very diverse district," said Tlaib. "This is a distraction."
When asked if they, as the four newcomers, were also a distraction, Omar, a Muslim-American, objected to the question: "He wants you to focus on that, and you should be asking, Why is it that we are being criticized?"
Associated Press writers Alan Fram, Zeke Miller and Darlene Superville contributed to this report.