NEW YORK — Israeli Prime Minister Benjamin Netanyahu accused Mayor Zohran Mamdani of endangering Jewish New Yorkers with his criticism of Israel’s military actions in Gaza, saying during a speech at the United Nations on Thursday that the mayor has spread lies about Israel. Calling Mamdani “the antisemitic mayor of New York,” Netanyahu spent part of his time speaking to the United Nations General Assembly to assail the man who threatened to have him arrested if he came to the city.“Mr. Mamdani, since you were elected mayor of this city, many Jews no longer feel safe in New York. They...