That Obama would even consider such a thing. There’s plenty reason to believe that Trump would consider such a thing. He’s done everything he could do in each of the last two elections to make his supporters believe that the results would be suspect if he lost, because of manipulation by the Democrats. He’s tried to tear down every institution this country has.
Personally I think he’s too much of a coward to try to stage a coup. He’ll lose he’ll leave and he’ll spend the rest of his life proclaiming that the Democrats stole the election from him. But I believe that because I don’t think the rest of the government would let him get away with trying to hold power. I tend to be a Pollyanna