Ivanka Trump used personal email for government business on hundreds of occasions in 2017, a discovery sparked by American Oversight's FOIA requests and litigation. The president’s family is not above the law, and Congress should investigate Ms. Trump’s likely violations of records rules and potential mishandling of classified information. With her and her husband, Jared Kushner, occupying positions of power and influence within the White House, it is important for the public to understand how they are carrying out their duties and whether they are obeying the law.