They have since pulled it off their website (for obvious reasons).
Via TWS:
In a recent issue the Economist, a British newsmagazine, published an article about the Obama adminstration’s efforts to reach a deal with the Iranian government over its nuclear program. The article was accompanied by a political cartoon that depicts President Obama being chained and restrained in his effort to a seal of the U.S Congress. Included on the seal are two representations of the Star of David, a traditional symbol of Judaism. An interpretation is that Obama is being “held back” by the Congress and its Jewish influences–a common anti-Semitic trope.