This is indeed the big point right now. McCarthy has room to gain among these 19. But it's not clear he has room to gain the 15 he needs.
That doesn't mean he definitely doesn't, of course. There could be a backroom deal before the 2nd ballot for all we know... though if that happens McCarthy would lose even more power to the crazies in any "deal" he'd make.
But his path is, it appears, uphill for the moment.
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Nope, he already lost the 2nd ballot.
Question now is whether the numbers change at all in this round, either for him or against him.