Mr. Trump's mandate: Does Mr. Trump have a mandate?
1) an official order or commission to do something.
2) the authority to carry out a policy or course of action, regarded as given by the electorate to a candidate or party that is victorious in an election
As the US is a constitutional republic and has always used the electoral college and that is what Trump won, it does appear he has a mandate. He most certainly will have on 20 January.