President Donald Trump is claiming that pardons recently issued by Joe Biden to lawmakers and staff on the congressional committee that investigated the Jan. 6 Capitol riot have no force because Biden signed them with an autopen instead of by his own hand.

The president has recently made baseless claims that Joe Biden routinely used an autopen and that his unelected aides used the executive power of the presidency without his knowledge.

The use of the autopen, a device that reproduces signatures and is ubiquitous in government and business, is ordinarily uncontroversial. There is no power to undo a pardon in the Constitution or case law.