NEW YORK (AP) — New York City Mayor Zohran Mamdani stepped into the national spotlight this week as an ascendant political force within the Democratic Party. Democratic leaders aren’t so sure that’s a good thing. As progressives cheered across the nation, some of the most powerful Democrats in the country, including House Minority Leader Hakeem Jeffries , downplayed the impact of Mamdani’s victories on Tuesday , when the 34-year-old democratic socialist mayor’s slate of congressional candidates