NEWYou can now listen to Fox News articles! New York City Mayor Zohran Mamdani marked his first 100 days in office Sunday alongside Sen. Bernie Sanders, a democratic socialist, touting what he described as sweeping achievements driven by government intervention.Mamdani cited key wins, including securing $1.2 billion for universal child care, advancing plans for five publicly owned grocery stores, pursuing legal action against landlords, and boosting investment in services such as sanitation and infrastructure.In a reference to former British Prime Minister Margaret Thatcher and her critique that socialists “eventually run out of other people’s money,” Mamdani defended his administration’s approach.”I…