​WASHINGTON — The head of Customs and Border Protection said Sunday he’d welcome more congressional oversight of the zero tolerance border polices, including Rep. Alexandria Ocasio-Cortez’s calls for a 9/11 style commission.

“Whatever ​C​ongress wants to do for additional oversight we welcome that,” Mark Morgan told Fox News’ “Sunday Morning Futures.”

Ocasio-Cortez Saturday said the US has a lifelong commitment to migrant children separated at the border under the Trump ​administration and asked for a 9/11-style commission to ensure children are reunited with their families.

​Morgan said the situation at the border is at a crisis level, but children now are only separated in very limited circumstances – when a child is in danger and when a parent has a criminal history, such as murder or rape, he said.

“We have had an incredible amount of oversight,” Morgan said. “We’ve had over 60 CODELs (congressional delegation trips) this year alone along the southwest border.

“The acting secretary and a host of leadership from CBP have testified countless times in front of ​C​ongress about the zero tolerance policy.”

About 65 to 70 percent of people apprehended at the southern border are families with children, Morgan said.