WASHINGTON, DC -- President Donald Trump said on Friday that any document signed by former President Joe Biden using an autopen "is hereby terminated."

"I am hereby cancelling all Executive Orders, and anything else that was not directly signed by Crooked Joe Biden," Trump posted on his social media platform.

It is unclear which orders Trump is referencing and how he is making those determinations. ABC News has reached out to the White House for more information.

Trump claimed that the people who "operated the Autopen did so illegally." But the Justice Department's legal counsel states that autopens are lawful for signing bills into law.

The president has repeatedly fixated on Biden's use of the autopen. In June, Trump claimed Biden aides illegally used the autopen to carry out "radic

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