CNN political commentator Angela Rye on Thursday compared those who separate families at America’s southern border to slave traders.

Rye and former Trump campaign chief spokesman Jason Miller were discussing Ivanka Trump’s comments regarding the issue of family separation of illegal immigrants with CNN host Chris Cuomo. Miller defended Ivanka’s comments and said it was important that the U.S. enforces its immigration laws and criticized Rye for wanting an “open borders” policy.

“What I don’t want to enforce is your president’s nonsense,” Rye responded.

Rye’s reference to “your president” several times prompted Miller to ask Rye if she was Canadian since she refused to say Trump was her president as well.