Ilhan Omar said Friday that "my name has always been Ilhan Omar," calling Donald Trump a "creep" after he accused her of using a fake name and urged her to resign.
A Justice Department court filing tied to a search warrant for her Washington-area home identified the Minnesota Democrat as "Ilhan Nur Said Elmi, a/k/a Ilhan Abdullahi Omar," fueling Trump's attack.
Trump also revived claims about Omar's former marriage to Ahmed Nur Said Elmi, allegations she has repeatedly denied; her spokesperson said a recent comment on any family link was sarcastic.
The dispute comes as federal investigators examine whether Omar or her father made false statements on immigration paperwork; agents earlier searched her home and seized her cellphone and passport.
Omar has not been charged, but the public clash broadens scrutiny of an investigation that has already reached her family and intensified political attacks from the White House.