Bernie outlined his thoughts on Israel today: https://berniesanders.com/sanders-outlines-middle-east-policy/
Wish he would have said them in front of AIPAC though. It's definitely an area I agree with him more than Hilary as a supporter of the latter.
People should give this a read. This is more of the stance that America, and the Middle East actually needs. Support, but not blind, and the ability to offer a far more fair and balanced outlook and response, irrespective of political and lobbyist pressure to the contrary.