a concession is just a pro forma statement made by the loser when it becomes obvious that it's all over but the fat lady's song and he wants everyone to put the champagne back on ice and turn out the lights. evidently in mid-song it was determined that the fat lady had succumbed to acalculia. as I said earlier, the votes read -- you can't just up and quit. (well, you can; but you don't while your supporters are waiting to drink that champagne!)

actually, it wouldn't have made any difference if he'd gone ahead and made the concession speech and it later turned out that he had won -- except that it would have been rather embarassing (but what could be more embarassing that what's going on now??).