Sharia law could be infused into the nation's court system, Republican presidential candidate Herman Cain says.

In an interview aired Sunday on ABC's "This Week," Cain said that "some people would infuse Sharia law in our court system if we allow it."

The issue, which makes many some Republicans cringe, has resurfaced because New Jersey Gov. Chris Christie is mulling a presidential bid. Earlier this year, Christie said he's sick of people talking about Islamic law taking over the American justice system.

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