Because Donald desperately needed a win to hold on to what remained of his invincibility ruse. Losing twice in a row would have been absolutely devastating to Trump. But he better reinforce his fragile ego-bubble, because he is about to lose again, and again, and again.
“But he better reinforce his fragile ego-bubble”
Do you, by any chance, know Trump intimately enough to say he is fragile? What has he done in his life that enables you to say he is fragile? Can you cite evidence? Your hatred of him is not evidence, I must remind you. He has matched wits with the top movers and shakers in a very rarefied atmosphere for many decades in the toughest market in the world — New York City — and has come out on top. Would that not mean he is just the opposite of fragile, or in other words, tough as nails?