Zohran Mamdani’s clout, a double Trump endorsement and more on the line in Tuesday’s primaries

The parties will also set up a handful of key House battleground races as voters in Maryland, New York, South Carolina and Utah pick nominees.

Just days after the ticker-tape parade celebrating the New York Knicks’ NBA championship, New Yorkers are gearing up for another major contest: Tuesday’s primaries, featuring several intense battles between Democratic members of Congress and upstart challengers.

Subscribe to read this story ad-free

Get unlimited access to ad-free articles and exclusive content.

Those races, as well as a handful of Democratic House primaries in Maryland and one in Utah, are the latest proving ground in the battle between the different wings in the Democratic Party this year. Progressives are seeking to increase their foothold in Washington, including in a series of races that will test New York City Mayor Zohran Mamdani’s sway among Democrats. And some of the most powerful and well-financed interest groups in politics are spending big in primaries at an inflection point for their issues in Washington.

Republicans will have some key races, too — most notably in South Carolina, where the Republican nomination in the open race for governor has gone to a runoff.