Trump Asks Supreme Court to Bar Release of His Tax Returns

WASHINGTON — President Trump asked the Supreme Court on Thursday to bar his accounting firm from turning over eight years of his tax returns to Manhattan prosecutors.

The case, the first concerning Mr. Trump’s personal conduct and business dealings to reach the court, could yield a major ruling on the scope of presidential immunity from criminal investigations.

Last week, a unanimous three-judge panel of a federal appeals court in Manhattan ruled against Mr. Trump, rejecting his argument that he was absolutely immune from criminal investigation while he remains in office. The court, in a focused ruling, said state prosecutors may require third parties to turn over a sitting president’s financial records for use in a grand jury investigation.