FILE PHOTO: U.S. Director of National Intelligence nominee Rep. John Ratcliffe arrives to testify at his U.S. Senate confirmation hearing in Washington Reuters The FBI said in a letter to a top Republican lawmaker Tuesday that it has "nothing to add" to recent comments that President Donald Trump's spy chief made about a laptop and emails purportedly belonging to Democratic presidential nominee Joe Biden's son, Hunter. The existence of the laptop and its contents were first revealed in a widely discredited New York Post story last week.