City Transportation Commissioner Ydanis Rodriguez, a longtime political ally to Mayor Adams, is expected to endorse Democratic front-runner Zohran Mamdani in the race for City Hall on Sunday, the Daily News has learned.

Rodriguez and a spokeswoman for Mamdani did not immediately return requests for comment. But two sources with direct knowledge said Rodriguez is expected to deliver the endorsement during a rally in Washington Heights with Mamdani that will also be attended by New York Congressman Adriano Espaillat, who’s backing the Democratic mayoral nominee, too.

The endorsement — which comes on the heels of early voting that started Saturday — is significant for multiple reasons.

Only a few top-ranking advisers to Adams have come out with endorsements in the 2025 mayoral race s

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