New York City Mayor Zohran Mamdani watching a World Cup game in New Jersey.Catherine Ivill - AMA/Getty ImagesNew York Mayor Zohran Mamdani has launched lotteries for big-ticket events, with thousands entering.A lottery for affordable World Cup tickets drew 350,000 entries, with winners elated to go.Some see the lotteries as political theater, although past mayors have opened their own lotteries.For Yolanda Vega, a social worker who runs a Head S…