Accusations have percolated for months on social media and right-wing websites, as well as among Trump’s allies in Congress.

President Donald Trump’s executive order does not specify the parameters or legal justification for investigating President ...

The House Oversight Committee's investigation alleges Biden was not mentally capable of leading the country during his presidency.

Donald Trump has issued a Presidential Memorandum directing his administration to probe whether former President Joe Biden ...

President Donald Trump has ordered his administration to investigate former President Joe Biden’s use of an autopen to sign ...

Trump ordered an investigation of his predecessor, Joe Biden, for alleged 'cognitive decline' and use of an autopen to sign ...

President Donald Trump has initiated an unprecedented investigation into the actions of former President Joe Biden, alleging ...

A former White House physician said giving Joe Biden a cognitive test last year would have helped people understand whether he could serve another term.

President Donald Trump on Wednesday directed a wide-ranging investigation into former President Joe Biden and officials in his administration, accusing his aides of using “autopen” signatures to cover ...

President Donald Trump has ordered an investigation into former President Joe Biden’s actions as president via a memorandum ...

Fox News correspondent David Spunt reports on the investigation into the alleged cover-up of former President Joe Biden’s ...