Judge Denies Trump’s Bid to Throw Out Conviction Over Immunity Ruling

A judge on Monday rejected Donald J. Trump’s argument that a recent Supreme Court ruling had nullified his criminal case in New York, upholding the former and future president’s felony conviction for falsifying records to cover up a sex scandal.

The judge’s ruling preserves, at least for now, the stain of Mr. Trump’s criminal conviction. And if the decision withstands an appeal, Mr. Trump could become the first felon to serve as president.

The ruling, which addressed the Supreme Court’s decision to grant presidents broad immunity for their official actions, thwarted only the first of several legal maneuvers Mr. Trump has concocted to clear his record of 34 felonies before returning to the White House.

Prosecutors had argued that the Supreme Court’s decision had “no bearing on this prosecution,” noting that Mr. Trump was convicted of orchestrating a scheme involving a personal and political crisis that predated his presidency.

But Mr. Trump’s lawyers seized on a particularly contentious portion of the high court’s ruling, which prohibited prosecutors from introducing evidence involving a president’s official acts even in a case about private misconduct. They argued that testimony from former White House employees had contaminated the verdict.

In the first significant interpretation of that polarizing opinion, the New York judge who oversaw the trial sided with prosecutors, concluding that the testimony centered on Mr. Trump’s unofficial conduct.