After Zohran Mamdani’s apparent victory in the New York Democratic mayoral primary on Tuesday, former Rep. Sheila Jackson Lee (D-Texas) liked an Instagram post congratulating him on his win. The only problem — Jackson Lee died last July. From ghost-likes and new profile pictures to a posthumous endorsement, accounts for dead lawmakers have seemingly resurrected on social media in an unsettling trend of beyond-the-grave engagement. “Dear White Staffers,” an anonymous account dedicated to highlighting experiences and perspectives of non-white congressional staffers, on Wednesday posted a screenshot of a notification that the late Texas representative’s account had liked the congratulatory post...