The US has lavishly supported it politically and financially, and has trained Fatah militias while opposing any Israeli military plan to defeat Fatah on the military or political battlefields.
Abbas bragged about his role as a terrorist in the 1960s and about Fatah's role as the founding father of modern terrorism. In his words, "We [Fatah] had the honor of leading the resistance and we taught resistance to everyone, including Hizbullah, who trained in our military camps."
[T]he US must redouble its efforts to seek out and cultivate the anti-jihadist forces in the Islamic world. Until it does so, rather than win the war, it will continue to stymied by the Musharrafs, Zardawis, Sharifs, Mubarak's and Abbases of the world who promote jihad while speaking of moderation, stability and democracy.