Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Trump Asks Supreme Court to Block Subpoena for His Tax Returns Associated Press WASHINGTON - President Donald Trump on Thursday asked the Supreme Court to block a subpoena for his tax returns, in a test of the president's ability to defy investigations. The filing set the stage for a high-court showdown over the tax returns Trump has refused to release, unlike every other modern president. The justices also could weigh in more broadly on Trump's claim that sitting presidents can't be prosecuted or investigated for crimes. The subpoena from the Manhattan district attorney is seeking Trump's taxreturns backto 2011 from his accounting firm as part of a criminal investigation. Trump wants the court to decide the case by late June, under a deal to keep the district attorney from enforcing the subpoena in the meantime. The justices may not decide whether to hear the case for at least another month. Second case A second, similar case is headed to the court over a House committee subpoena demanding Trump's financial records from the same accounting firm. The president has lost both cases at each step of the judicial process so far. .