An interesting conference was held on the 18th of March about Israel’s Influence in the U.S, including on members of Congress and the U.S. media. Watch the full conference
http://www.c-span.org/video/?406894-1/discussion-israels-influence-us
Also you can read the following articles of Washington Post about US and Israel:
U.S. policy toward Israel called harmful to both countries at conference
Why Chris Christie’s ‘occupied territories’ remark matters