On Monday morning, GOP front-runner Donald Trump inadvertently gave his opponents a ready-made attack ad. During an interview with NBC’s Matt Lauer on Today, the billionaire, who often gives the impression that he built his fortune from scratch, even though he hails from a wealthy background, explained the challenges of building his real estate empire. “It has not been easy for me,” he said. “It has not been easy for me.” He said his father, real estate developer Frederick Trump, had given him a “small loan,” which he repaid with interest, and which enabled him to begin buying properties in Manhattan. The size of the loan? It was for a paltry $1 million.