This week on Inside Washington: Newt Gingrich is losing support in national polls as well as Iowa, where the caucuses are fast approaching. Who is benefiting from Gingrich’s misfortune?

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Rick Santorum is showing new strength after months of languishing near the bottom of the pack. What accounts for that movement?

Iowa takes a lot of criticism for being small and unrepresentative. Is it still relevant to the nominating process?

Ron Paul’s isolationist views worry some Republicans. Does Iran’s maneuvers in the Persian Gulf give Paul’s stance more meaning?

What are the top political stories of 2011 and how do you see the Republican ticket shaping up in 2012?