yep, the israeli lobby is very strong and successful in the u.s., of course.
clinton made a half-arse attempt at a peace deal and blamed the failure on arafat who would have been hung when he got back home, if he had given up the land and rights that sharon wanted him to.
besides that, carter was the last u.s. president to really put pressure on israel.
obviously, israel doesn't want to give up land for peace and is happy with the status-quo and america just says "what you gonna do. we can't force a peace deal."