Not because of his back ground, but because of his far left wing views. He may not wish harm to Israel but he doesn't understand the reality of the threat from radical Islam. I wouldn't be surprised if later on he would push Israel to have a Camp David type deal with current Palestinian government, and Syria over Golan. He talks very well andpeople love good utopian speeches. I don't trust his national security stance.
Northern California wildfire doubles in size, displaces thousands (Reuters)
from the article: Sen. Obama: U.S. must support Israel's right to self defense