Halpern was recommended to the White House by former Westchester CountyDistrict AttorneyJeanine Pirro, a prominent talk show host who's an outspoken supporter of the Trump Administration and the former wife of Halpern's law firm partner.[4] On October 10, 2018, President Donald Trump announced his intent to nominate Halpern to serve as a United States district judge for the United States District Court for the Southern District of New York. On November 13, 2018, his nomination was sent to the Senate. President Trump nominated Halpern to the seat vacated by Judge P. Kevin Castel, who assumed senior status on August 5, 2017.[5]
On January 3, 2019, his nomination was returned to the President under Rule XXXI, Paragraph 6 of the United States Senate. On January 22, 2019, President Trump announced his intent to renominate Halpern for a federal judgeship.[6] His nomination was sent to the Senate the next day.[7] On October 30, 2019, a hearing on his nomination was held before the Senate Judiciary Committee.[8] On November 21, 2019, his nomination was reported out of committee by a 17–5 vote.[9] On February 11, 2020, the Senate invoked cloture on his nomination by a 75–18 vote.[10] On February 12, 2020, his nomination was confirmed by a 77–19 vote.[11] He received his judicial commission on February 21, 2020.[12]