Rising socialist star Zohran Mamdani could lose the upcoming New York City mayoral election, but only if Republican challenger Curtis Sliwa drops out, a new poll predicts. Mamdani, 33, would see his lead over centrist challenger Andrew Cuomo - a former Democrat who is running as an independent - cut to just four points if Sliwa voluntarily exited the race. The Gotham Polling and AARP survey said 44.6 percent of New Yorkers would back Mamdani, with 40.7 percent backing Cuomo, if Sliwa did drop out, the New York Post reported. That poll has a four percent margin of error, meaning...