Electronic Intifada, an online news publication covering the Israeli-Palestinian conflict, has obtained a never-released Al Jazeera investigation into how pro-Israeli advocacy groups influence US politics.

The four-part documentary, titled The Lobby — USA, was filmed by an Al Jazeera undercover journalist, called "Tony", who infiltrated the Israeli lobby during a five-month operation and earned the trust of its leaders.

Tony is said to have volunteered for the Israel Project, a US-based nonprofit, which he learned had contacts in numerous news agencies, such as Bloomberg, the Washington Post, the Associated Press, Reuters, the Wall Street Journal, and BuzzFeed, who worked on "neutralising the undesired narratives".