Secretary of State Mike Pompeo said on Monday that the "ISIS bride" Hoda Muthana is "not a US citizen" and will not be permitted to return to the US.

"We don’t need people like her who threatened the lives of Americans," he told Dave Levora of "AM Quad Cities" on WOC Radio.

Muthana was smuggled into Syria in November 2014 to join the Islamic State group, and in 2015 she advocated on Twitter for violence against Americans.

Her family, who says she is a US citizen, is suing the US government to allow their daughter to return to the US, where she was born.

The lawsuit hit a speed bump on Monday. A federal judge rejected a request to expedite the litigation process, which might not be completed until summer.

Secretary of State Mike Pompeo continued his argument against allowing the US-born "ISIS bride" Hoda Muthana to return home, telling a radio host on Monday, "we don't need people like her who threatened the lives of Americans."

Muthana, 24, left Alabama, where she was living with her family, and she was smuggled into Syria in November 2014 to join the Islamic State group. She married a succession of IS militants there and gave birth to the son of an IS fighter, who has since died.

On Twitter, she called for violence against Americans. "Go on drive-bys and spill all of their blood, or rent a big truck and drive all over them," she said in a tweet from March 2015, according to The New York Times.

She deserted the terrorist organization with her 18-month-old son in December as the caliphate crumbled, and she later surrendered to Kurdish forces.

Muthana, who is being detained in a refugee camp in Syria, has been begging to return to the US, insisting she is a US citizen — something that is being debated in federal court.

Pompeo, at the direction of President Donald Trump, issued a statement in late February saying that Muthana "is not a US citizen and will not be admitted into the United States."

Read more: The State Department says the ISIS bride begging to return to the US is not a citizen and isn't coming back

Pompeo doubled down on his previous statement in a radio interview on Monday.

"This is a woman who went online and tried to kill young men and women of the United States of America," he told Dave Levora of "AM Quad Cities" on WOC Radio in Iowa. "She advocated for jihad, for people to drive vans across streets here in the United States and kill Americans."

"She’s not a US citizen. She has no claim of US citizenship." Pompeo said. "In fact, she’s a terrorist, and we shouldn’t bring back foreign terrorists to the United States of America."

"President Trump is determined that she will not come back," he added. "And we don’t need that kind of risk, and we don’t need people like her who threatened the lives of Americans and Iowans coming back to the United States who aren’t citizens."

Muthana's father, who said his daughter is a US citizen by birth, is suing the US government, specifically the secretary of state.

Muthana, the daughter of a former Yemeni diplomat, was born in Hackensack, New Jersey, in October 1994. Her father reportedly stepped down from his post as a diplomat just before her birth; however, the United Nations did not notify the relevant authorities until the following year, effectively pushing back the date when his diplomatic status ended.

Under the provisions of the 14th Amendment, anyone born in the US is entitled to citizenship. However, this does not apply to children of individuals under the diplomatic protections of another country.

The Department of Justice backed Pompeo's statements on Monday, saying that Muthana "is not and has never been a US citizen."

Read more: DOJ rejects American-born ISIS bride Hoda Muthana's citizenship claims as she insists she should be allowed back into the US

Muthana recently told CBS News that Trump should "study the legal system," telling reporters that she is allowed back. "I have papers. I have citizenship."

Muthana previously held a US passport, but the document was issued to her "in error," Monday's Department of Justice court filing said. The Department of State informed her in 2016 that her passport was no longer valid.

On Monday, a federal judge rejected the family's request to expedite the case. It marks a major setback for the suit, which may not be litigated until sometime this summer.