Vice President Kamala Harris on Sunday called for the reinstatement of the Federal Assault Weapons Ban, arguing that certain semi-automatic firearms are “intentionally designed” to kill people and only belong on the battlefield.

During an appearance on CBS News’ “Face the Nation,” Harris spoke about her visit last week to Highland Park, Illinois, where a man armed with a semi-automatic rifle opened fire on a Fourth of July parade, killing 7 and injuring 46.