President Donald Trump is seeking to end birthright citizenship, a move to cut off a longstanding constitutional right that could leave hundreds of thousands of Texas children without legal status. The move has been questioned by legal scholars and it has already drawn lawsuits from the American Civil Liberties Union and a coalition of Democratic-led states.

President Donald Trump launched his sweeping immigration crackdown on Monday which included an order reinterpreting birthright citizenship, a principle that has been recognized in the United States for more than 150 years.

Eighteen states have sued the federal government over the executive order, showing the legal challenges the president will face.