America is tired of the Israeli/Palestinian conflict. The Israel-Palestinian conflict has spread to all types of "backlashes" in the Arab world. These "backlashes" include the Wars in Iraq, Afghanistan and Pakistan, which automatically "pulls" the USA into these conflicts...Also, a second reason is the approx $5 Billion from the USA to Israel every year.
MK Nachman Shai calls on Netanyahu to declare national state of emergency (Haaretz)
from the article: Israel lodges formal complaint with UN over barrage of Gaza mortars