U.S. President Donald Trump insisted Tuesday that his tweets suggesting four Democratic congresswomen of color return to their countries "were NOT Racist," and he appealed to fellow Republicans to "not show weakness" and to resist a House resolution condemning his words.

"I don't have a Racist bone in my body!" Trump exclaimed on Twitter, a day after declaring that "many people agree" with his assessment of the four freshman lawmakers. Alexandria Ocasio-Cortez slammed Trump's tweet, writing, "Authoritarians rely on mass distortion of reality to further concentrate their power, and they will take advantage of anyone and anything to meet that end."

Ocasio-Cortez was referencing the fact that Trump cited misleading polling information to deride the congresswoman as unpopular.

"Those Tweets were NOT Racist," Trump wrote Tuesday amid a continued backlash to his weekend tweets that progressive women "go back" to their "broken and crime-infested" countries. The tweets, which have been widely denounced as racist, were directed at Reps. Ilhan Omar of Minnesota, Ocasio-Cortez of New York, Ayanna Pressley of Massachusetts and Rashida Tlaib of Michigan.

All are American citizens, and three of the four were born in the U.S.

Trump alleged again Tuesday that the women, who strongly oppose his policies and comments, in reality "hate our Country."

The four lawmakers fired back late Monday, condemning what they called "xenophobic bigoted remarks" and renewing calls for Democrats to begin impeachment proceedings.

The episode served notice that Trump is willing to again rely on incendiary rhetoric on issues of race and immigration to preserve his political base in the leadup to the 2020 election. He shrugged off the criticism.

"It doesn't concern me because many people agree with me," Trump said Monday at the White House. "A lot of people love it, by the way."

At the Capitol, there was near unanimous condemnation from Democrats and a rumble of discontent from a subset of Republicans, but notably not from the party's congressional leaders.

House Speaker Nancy Pelosi, who said Trump's campaign slogan truly means he wants to "make America white again," announced Monday that the House would vote on a resolution condemning his new comments . The resolution "strongly condemns" Trump's "racist comments" and says they "have legitimized and increased fear and hatred of new Americans and people of color."

In response, Trump tweeted anew Tuesday about the four congresswomen: "Why isn't the House voting to rebuke the filthy and hate laced things they have said? Because they are the Radical Left, and the Democrats are afraid to take them on. Sad!"

Republican Sen. Mitt Romney of Utah, the party's White House nominee in 2012 and now one of the president's most vocal GOP critics, said Monday that Trump's comments were "destructive, demeaning, and disunifying."

Trump dug in. "If you're not happy in the U.S., if you're complaining all the time, you can leave, you can leave right now," he said.

His words, which evoked the trope of telling black people to go back to Africa, may have been partly meant to widen the divides within the House Democratic caucus, which has been riven by internal debate over how best to oppose his policies. And while Trump's attacks brought Democrats together in defense of their colleagues, his allies noted he was also having some success in making the progressive lawmakers the face of their party.

The Republican president questioned whether Democrats should "want to wrap" themselves around this group of four people as he recited a list of the quartet's most controversial statements.

"Nancy Pelosi tried to push them away, but now they are forever wedded to the Democrat Party," he wrote Tuesday, adding: "See you in 2020!"

At a news conference with her three colleagues, Pressley referred to Trump as "the occupant of our White House" instead of president.

"He does not embody the grace, the empathy, the compassion, the integrity that that office requires and that the American people deserve," she said, encouraging people "not take the bait." Pressley said Trump's comments were "a disruptive distraction from the issues of care, concern and consequence to the American people" — prescription drug prices, affordable housing, health care."

Omar, a naturalized U.S. citizen born in Somalia, accused him of "openly violating" the Constitution and sounded the call for impeachment proceedings.

Ocasio-Cortez said Trump "does not know how to defend his policies and so what he does is attack us personally."

The Senate's top Democrat, Chuck Schumer of New York, said his party would also try to force a vote in the GOP-controlled chamber.

Trump, who won the presidency in 2016 in part by energizing disaffected voters with inflammatory racial rhetoric, made clear he has no intention of backing away from that strategy in 2020.

"The Dems were trying to distance themselves from the four 'progressives,' but now they are forced to embrace them," he tweeted Monday afternoon. "That means they are endorsing Socialism, hate of Israel and the USA! Not good for the Democrats!"

Trump has faced few consequences for such attacks in the past. They typically earn him cycles of wall-to-wall media attention and little blowback from his party. He is wagering that his most steadfast supporters will be energized by the controversy as much, or if not more so, than the opposition.

The president has told aides that he was giving voice to what many of his supporters believe — that they are tired of people, including immigrants, disrespecting their country, according to three Republicans close to the White House who were not authorized to speak publicly about private conversations.

Trump singled out Omar, in particular, accusing her of having "hatred" for Israel and expressing "love" for "enemies like al-Qaida."

"These are people that, in my opinion, hate our country," he said.

Sen. Lindsey Graham, a close ally of the president who golfed with him over the weekend, advised him to "aim higher" during an appearance on Fox News Channel's "Fox & Friends," even as he accused the four Democrats of being "anti-Semitic" and "anti-American."

Marc Short, chief of staff to Vice President Mike Pence, said "I don't think that the president's intent in any way is racist," pointing to Trump's decision to choose Elaine Chao, who was born in Taiwan, as his transportation secretary.

Chao is one of the few minorities among the largely white and male aides in high-profile roles in Trump's administration. She is the wife of Senate Republican leader Mitch McConnell, who declined comment Monday on Trump's attacks.

Among the few GOP lawmakers commenting Monday, Rep. Pete Olson of Texas said Trump's tweets were "not reflective of the values of the 1,000,000+ people" in his district. "I urge our President immediately disavow his comments," he wrote.

In an Associated Press-NORC Center for Public Affairs Research poll from February 2017, half of Americans said the mixing of culture and values from around the world is an important part of America's identity as a nation. About a third said the same of a culture established by early European immigrants.

But partisans in that poll were divided over these aspects of America's identity. About two-thirds of Democrats but only about a third of Republicans thought the mixing of world cultures was important to the country's identity. By comparison, nearly half of Republicans but just about a quarter of Democrats saw the culture of early European immigrants as important to the nation.

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Associated Press writer Hannah Fingerhut contributed to this report.

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Lemire reported from New York. Follow Miller on Twitter at http://twitter.com/@ZekeJMiller , Colvin at http://twitter.com/@ColvinJ and Lemire at http://twitter.com/@JonLemire .