SHOCKING: DHS Secretary Nielsen shows up at House hearing without knowing how many children have been detained
Secretary Kirstjen Nielsen appears before the House Homeland Security Committee (C-SPAN/screen grab)

DHS Secretary Kirstjen Nielsen claimed on Wednesday that she did not know how many migrant children had been detained by her department.

During a House Homeland Security hearing, Rep. Sheila Jackson Lee (D-TX) asked the DHS secretary if she knows "how many young people are detained."

"I don't have that number in front of me," Nielsen said.

The Homeland Security secretary said that she would provide the number of children at a later date.

Lee also asked Nielsen if her duty is to the U.S. Constitution or President Donald Trump. Nielsen agreed that she had given her oath to the U.S. Constitution and the American people.

Watch the video below.