03/28/2008 02:45 am ET Updated May 25, 2011

Hillary Holds 30-Point Lead In National Poll

The interaction of religion and politics is helping to roil the Republican presidential race, with Mike Huckabee and Mitt Romney gaining ground, while support for Rudy Giuliani, down especially among conservatives and highly engaged voters, has slipped to its lowest level of the year.

With a rally among evangelical Protestants, Huckabee's advanced sharply in this national ABC News/Washington Post poll, while Romney's made some progress allaying concerns about his Mormon religion. Along with Giuliani's diminished lead, his one-time chief competitors, John McCain and Fred Thompson, are near their own lows.

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