An appeals court temporarily blocked congressional Republicans from questioning a former prosecutor with the Manhattan district attorney’s office, briefly pausing an order from a federal district judge.
The prosecutor, Mark F. Pomerantz, worked on the district attorney’s investigation into Donald J. Trump for about a year, before resigning in 2022, and published a book about his experience.
The office brought felony charges against Mr. Trump last month.
Shortly after the charges were unsealed, Representative Jim Jordan, Republican of Ohio, subpoenaed Mr. Pomerantz, signaling that he intended to conduct oversight of the inquiry into Mr. Trump, his political ally.
She said that Republicans on the committee had a constitutional right to question Mr. Pomerantz.