I thought the children (3) were not a product of the marriage.
In 2016, Ilhan told the press that her 2009 marriage to Ahmed Elmi was essentially a two-year hiatus from her relationship with Ahmed Hirsi, the legal father of all three of her children. She claimed to have separated from Hirsi, then met and married Elmi, a relationship which failed permanently sometime around June 2011, and then rekindled with Hirsi and had a third child.
https://pjmedia.com/homeland-security/state-rep-ilhan-omar-d-mn-swore-to-apparent-falsehoods-in-court-while-divorcing-her-alleged-brother/
OPM