Trump flubs 9/11 reference; calls it 7-eleven instead

Republican presidential front-runner Donald Trump has made an embarrassing slip-up at his final rally before the big-prize primary contest in New York.

The brash billionaire businessman was about to deliver prepared remarks lauding New York values when he mistakenly mentioned the name of convenience store chain 7-Eleven instead of 9/11 - the September 11 2001 terror attacks.