Washington DC, Dec. 3 -- US President Donald Trump declared all official documents signed by his predecessor Joe Biden, using an autopen, "null, void, and of no further force or effect."

Autopen is a device used to replicate a person's signature with precision. The Autopen has been used by both Republican and Democratic presidents in the past.

"Any and all Documents, Proclamations, Executive Orders, Memorandums, or Contracts, signed by Order of the now infamous and unauthorized "AUTOPEN," within the Administration of Joseph R. Biden Jr., are hereby null, void, and of no further force or effect." Trump said in a post on his social media platform, Truth Social.

"Anyone receiving 'Pardons,' 'Commutations," or any other Legal Document so s...