US President Barack Obama slammed Republican presidential nominee Donald Trump for making false allegations about rigging of the elections and asked the real estate tycoon to stop whining and make his case to get votes.
Mr Obama told reporters at a White House news conference that there is no evidence that rigging has happened in the past or that there are instances in which that will happen this time.
He said he has never seen, in his lifetime or in modern political history, any presidential candidate trying to discredit the elections and the election process before votes have even taken place.