The top Republican in Congress said Tuesday he was "shocked" by a report that Israel spied on Iranian nuclear talks but insisted he did **t k**w whether information was shared with US lawmakers. The Wall Street Journal reported late Monday that in addition to Israelis spying on the highly-sensitive negotiations between Tehran and world powers, details were back-chanelled to US legislators in an effort to sabotage the deal intended to limit Iran's nuclear program. "Frankly I was a bit shocked, because, there was ** information revealed to me whatsoever," said House Speaker John Boehner, who will visit Israel in coming weeks following Prime Minister Benjamin Netanyahu's re-election victory. On the apparent leaking of details to unnamed members of Congress, Boehner said,"I'm **t aware of that at all." Many Republicans are opposed to any accord that would **t outright eliminate Iran's entire nuclear program, rather than merely freeze or contain it.