A judge has ordered United States (US) President Donald Trump to hand over eight years of his tax returns to a New York state criminal investigation.
The judge rejected arguments by the Trump's lawyers that total immunity protects him while in office.
Mr Trump is the only presidential candidate since the 1960s apart from Gerald Ford not to release tax returns.
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The ruling helps an investigation into hush money paid to two women who claim they had affairs with Mr Trump.
In his 75-page decision on Monday, Judge Victor Marrero said he could not allow a "categorical and limitless assertion of presidential immunity from judicial process".
Mr Trump's lawyers have immediately filed an emergency appeal with a higher court.
