Editor's note: Julian E. Zelizer is a professor of history and public affairs at Princeton University's Woodrow Wilson School. His new book, "Arsenal of Democracy: The Politics of National Security - From World War II to the War on Terrorism," will be published this fall by Basic Books. Zelizer writes widely on current events.
By Julian E. Zelizer
Special to CNN
This week, Jews will conclude the eight-day celebration of Passover, a holiday that has often found its way into the political realm.
Civil rights leader Martin Luther King Jr. frequently invoked the story of the liberation of the Jewish people from the Egyptians in his struggle against white oppression. President Obama made headlines last week when he hosted a Passover Seder in the White House.
Today, Democrats can draw an important lesson from Passover, this time not so much from the story that is retold during the holiday but through the rituals that are the focus of the week. Last Wednesday and Thursday evenings, Jews gathered with families, friends and other groups to have a Seder.
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