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.

Donald Trump has launched a probe into aides of Joe Biden for allegedly concealing his mental decline, as the US president escalates his effort to seek retribution against political foes.

Administration has cited security concerns after the Colorado attack, which involved an Egyptian suspect who would not have ...