President Donald Trump said on Tuesday that he was briefed on the Monday night mass shooting in New York City, saying his “heart was with” the four people killed. “I trust our Law Enforcement Agencies to get to the bottom of why this crazed lunatic committed such a senseless act of violence,” he wrote in a Truth Social post.

Here are answers to whether the president can make good on his threat to take over the city if Zohran Mamdani becomes mayor.