Donald Trump has vowed to crack down on poor voting practices such as people who are registered to vote in more than one state – something several people close to him are reportedly guilty of.

All 50 states have finalized their election results with no reports of the kind of widespread fraud Trump is alleging.

White House spokesman Josh Earnest said, "What I can say, as an objective fact, is that there has been no evidence produced to substantiate a claim like that."