Left-wing Twitch streamer Hasan Piker publicly criticised New York City Mayor Zohran Mamdani, telling him to "shut the f— up" over what he described as overly cautious political messaging, and urging him to be more "bold" and unapologetic in pushing progressive policies. The comments were made during an appearance at the College Democrats of America Summer Convention, where Piker was pressing for a broader left-wing takeover of the Democratic Party, reflecting growing tension between the party's socialist wing and its more moderate leadership.

Piker's remarks form part of a wider push by some on the left to move Mamdani, a democratic socialist, further away from cautious centrist rhetoric. The article notes Mamdani has separately faced questions elsewhere, including from Jon Stewart on where he diverges from fellow democratic socialists on issues such as prisons and borders, and has himself criticised the Democratic Party as run by "well-paid consultants and big money interests." He has also said he remains divided from the Trump administration on immigration enforcement, arguing that ICE "should be abolished."