The device, which is used to replicate a person’s authentic signature, has been used by presidents for decades.

Biden, who was 81 at the time, dropped his bid for a second term after a disastrous debate performance against Trump renewed ...

Donald Trump's accusations have been vehemently denied by his predecessor, who opted not to run for a second term, paving the way for the billionaire's victory over Kamala Harris in November.

Days after sharing a social media post about "Biden's execution in 2020", the US president has ordered an investigation into Joe Biden.