“a source close to the president-elect with direct knowledge of his thinking told NBC News.”
Not a chance this statement is true.
I tend to agree, but if it is true, then it means someone in Trump's inner circle leaked this. Usually that means the leak is deliberate and sanctioned by the principal -- Trump in this case. The President-elect might not be the type to hold grudges, but what Romney did is beyond the pale in my estimation. So I just find this so hard to believe.