US President Donald Trump has slammed a New York Times investigation into his tax affairs as a "very old, boring and often-told hit piece".
The investigation showed Mr Trump received the equivalent today of at least US$413 million (NZ$630 million) from his father's real estate business.
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The Times reported that much of that money was directed to Mr Trump to help his parents avoid taxes.
Mr Trump slammed the report in a tweet earlier this morning.
"The Failing New York Times did something I have never seen done before. They used the concept of 'time value of money' in doing a very old, boring and often told hit piece on me. Added up, this means that 97 percent of their stories on me are bad. Never recovered from bad election call!" Trump tweeted.
Mr Trump has often boasted about becoming a self-made billionaire, claiming he only received a US$1 million loan from his father which he paid back with interest.
Newshub.