It is impossible for us to wake up the next morning to know who the Prime Minister will be. First, all the party heads go to the President to make their recommendation on who should be Prime minister. He appoints the one most likely to succeed. Then the haggling begins.
If Ch’v, Herzog becomes Prime minister, he will capitulate to Obama and every Arab demand. It would put Eretz Yisroel in mortal danger. The saving grace to this is, that it would force people to do Teshuva and bring Moshiach, though we prefer Moshiach comes without the hardship that would be inevitable.
When you see Herzog, you see his weakness in his facial expression and body language. He is a political lightweight. He has proven, with his agreement with Livni, that his negotiation skills are abysmal.
Whatever happens, is min HaShamayim and will ultimately be for the good.