Donald Trump has consistently sought credit for the several high-profile jobs announcements made by big companies in the weeks following his election. "Because of what's happening and the spirit and the hope, I was just called by the head people at Sprint and they're going to be bringing 5,000 jobs back to the United States and taking them from other countries," Trump told reporters back in December . On Twitter, he's boasted about his role in creating and keeping jobs in America . But is the president-elect, still days away from his swearing-in ceremony, actually behind what might appear to be a hiring bonanza? Economic evidence suggests otherwise, indicating instead that he did not cause most of the new hiring. GM announced it was creating 450 new American jobs on Tuesday, for example, and moving 6,000 existing technology jobs back to the United States. The company's official announcement does not mention Trump or the federal government. Instead,...