Four U.S. states hold major primary elections as President Donald Trump and New York City Mayor Zohran Mamdani test their political influence, according to the provided reporting. The primaries take place in New York, South Carolina, Maryland, and Utah, with each contest offering an early measure of support for their respective political standing. The coverage frames the elections as a point of comparison between the two figures, suggesting that the results in these states could affect perceptions of momentum and backing within their parties and among voters.

The reporting does not specify the exact races or ballot measures involved in each state, but it presents the primaries collectively as a single political moment. Overall, the story focuses on how these concurrent elections place Trump and Mamdani in the center of attention during a period when voters in multiple regions are selecting candidates. As ballots are cast and results are anticipated, the emphasis remains on whether the primaries reflect strong electoral support for either figure.