I think that the two greatest impediments to peace are: 1) The Israel settlers who will block in every way any possible attempt at trading peace for land. and 2) Palestinian extremists who will lose the greater part of their power if moderate Palestinians succeed in obtaining from Israel a just, honorable and lasting peace. Which of the impediments is most to blame? It really doesn't matter. If the "Leftist Jewish Lobby" can help others help President Obama to bring enough pressure on both sides, the question will be moot.
Iran's Parliament speaker says he supports nuclear deal (AP)
from the article: Leftist Jewish lobby looks beyond 'click activists' for support