Mayor Zohran Mamdani on Friday sought to create a wall between his leadership of New York City and the private views of his wife, Rama Duwaji, after being asked about her social media activity surrounding the Hamas-led attacks on Israel on Oct. 7, 2023. Ms. Duwaji liked posts on Instagram that were supportive of the Palestinian cause immediately after the attacks, in which roughly 1,200 people were killed and 251 were taken hostage, according to the Israeli authorities. Israeli military forces responded with military action in Gaza that has killed more than 70,000 Palestinians, according to Gaza’s health ministry. The...