The pro-Israel lobby has been described by some as the most effective interest group "across the entire planet".

As Israeli Prime Minister Benjamin Netanyahu prepares for his first visit to Washington since his controversial appearance before Congress in March, why does Israel command so much support in the US, especially in Congress?

Is it thanks to the efforts of the pro-Israel lobby? Or is the lobby's influence over exaggerated?

In this week's Arena, Professor Alan Dershowitz debates former Democratic Congressman Brian Baird on the influence of the Israel lobby.

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Source: Al Jazeera