A protester set himself on fire outside Trump International Hotel in Washington DC on Tuesday.  The man, who has not yet been identified, said the act was in protest of the President-elect's looming inauguration. Witnesses described how he yelled 'Trump' several times as 'flames ran up his back' before lying down in the street.   He suffered non-life-threatening burns and was taken to hospital shortly after the incident at around 9.30pm.  A Washington DC Police source told DailyMail.com he was not arrested.  '(I'm protesting) the fact that we've elected somebody who is completely incapable of respecting the constitution of the United States.'  A Washington DC Police source said the man was injured but that his wounds were not serious. A by-passer said it was not initially clear what the man…