Israel's opposition leaders spent the past week trying to prove their relevance. On Tuesday, both former prime minister Ehud Olmert and Kadima leader Tzipi Livni accused Prime Minister Binyamin Netanyahu of wrecking Israel's relations with the US. Both Livni and Olmert claimed that Netanyahu is taking a knife to Israel's most valuable alliance by refusing to bow to US President Barack Obama's demand that the government extend the ban on Jewish building in Judea and Samaria for an additional 60 days.