Rep. Trey Gowdy on Thursday rejected arguments from the Obama administration that no warning signs were missed when it gave Tashfeen Malik a visa to enter the United States, and participate in a shooting that killed 14 people in California.

At an oversight hearing of the U.S. visa system, Gowdy said “it’s one thing” for DHS to admit that screeners missed signs of Malik’s radicalization before allowing her to move to the U.S. on a fiancee visa.