"When a man knows he is to be hanged in a fortnight," so wrote Samuel Johnson, "it concentrates his mind wonderfully."For 3 years, Opposition Leader Tzipi Livni has labored in vain to puncture Prime Minister Binyamin Netanyahu's standing in the public. And for 3 years, her attacks have fallen flat. Time after time, her criticisms of his policies and his government have failed to undermine his support. But now, with countless rivals breathing down her neck, Livni has finally cracked the code and figured out Bibi's weak spot.Even if occasional polls have suggested that a majority are dissatisfied with Netanyahu's functioning as prime minister, Likud's number of expected Knesset seats in the next election—the only count that matters—has remained rock solid. Kadima, on the other hand, has slumped in the polls, which suggest that if elections were to be held now, the party would lose nearly a third of the seats it now holds.