GOP presidential candidate Vivek Ramaswamy said Friday he would deport the children of undocumented immigrants with their families, despite them already being U.S. citizens.

“There are legally contested questions under the 14th Amendment of whether the child of an illegal immigrant is indeed a child who enjoys birthright citizenship or not,” Ramaswamy said after a town hall in Iowa.

Ramaswamy is not the only GOP candidate to question U.S. citizenship rules. Former President Trump announced in late May that on his first day back in office, he would seek to end birthright citizenship by way of an executive order.