Former Georgia gubernatorial candidate Stacey Abrams (D) said Tuesday that she believes senior White House adviser Stephen Miller shows signs of supporting a white nationalist ideology.

In an interview with CNN, Abrams was asked whether she believes Miller is a white nationalist, as some Democratic members of Congress, including Reps. Ilhan Omar Ilhan OmarOmar fires back at Trump over rally remarks: 'This is my country' Trump attacks Omar for criticizing US: 'How did you do where you came from?' Democrats scramble on COVID-19 relief amid division, Trump surprise MORE (D-Minn.) and Mark Pocan Mark William PocanOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Democrats call for investigation into Pentagon redirecting COVID-19 funds Clark rolls out endorsements in assistant Speaker race MORE (D-Wis.), have alleged.

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“I believe that what we have seen from Stephen Miller is vestiges of white nationalism," Abrams responded, adding that Democrats never had the chance to question Miller on his views and ascertain what he believes.

"The problem is, we've never been able to fully investigate who he is and where he stands," she said.

Stacey Abrams on Rep. Omar's claims that White House adviser Stephen Miller is a “white nationalist”: “I believe that what we have seen from Stephen Miller is vestiges of white nationalism. The problem is we've never been able to fully investigate who he is and where he stands” pic.twitter.com/8k136On2mE — CNN Politics (@CNNPolitics) April 9, 2019

The White House did not immediately respond to a request for comment.

A tweet from Omar earlier Tuesday accused Miller of being a white nationalist. She was quickly criticized by some Republicans, including Rep. Lee Zeldin Lee ZeldinDCCC reserves new ad buys in competitive districts, adds new members to 'Red to Blue' program Overnight Defense: House panel probes Pompeo's convention speech | UN council rejects US demand to restore Iran sanctions | Court rules against Pentagon policy slowing expedited citizenship The Hill's 12:30 Report: Republicans conduct in-person convention roll call MORE (N.Y.), who previously accused her of making anti-Semitic remarks with her criticism of Israel and the pro-Israel lobby in the U.S.

"Stephen Miller is a white nationalist. The fact that he still has influence on policy and political appointments is an outrage," Omar wrote Tuesday.

Stephen Miller is a white nationalist. The fact that he still has influence on policy and political appointments is an outrage. https://t.co/7NyMDgojd7 — Ilhan Omar (@IlhanMN) April 8, 2019

Several Democrats defended Omar, one of the first two Muslim women elected to Congress, arguing that identical criticism of Miller made by white lawmakers like Pocan did not stir up controversy.

"Last year I called Stephen Miller a white nationalist, but @RepLeeZeldin & @DonaldJTrumpJr never accused me of anti-Semitism," Pocan tweeted.

"Rather than attacking @IlhanMN, why won't they stand up to white nationalism & President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE's support for 'very fine people'?" he added.

Last year I called Stephen Miller a white nationalist, but @RepLeeZeldin & @DonaldJTrumpJr never accused me of anti-Semitism.



Rather than attacking @IlhanMN, why won't they stand up to white nationalism & President Trump's support for 'very fine people'?https://t.co/KxWoLl3OZF — Rep. Mark Pocan (@repmarkpocan) April 9, 2019

Abrams is said to be considering a White House bid in 2020. She recently rejected speculation that she was considering joining a ticket with former Vice President Joe Biden Joe BidenOmar fires back at Trump over rally remarks: 'This is my country' Trump mocks Biden appearance, mask use ahead of first debate Trump attacks Omar for criticizing US: 'How did you do where you came from?' MORE as his running mate to be vice president.