The Big Questions: By Mark Halperin

Wes Duvall for TIME

Is Sarah Palin in or out?

The former Alaska governor still acts like a potential presidential candidate. Her Labor Day weekend speeches in Iowa and New Hampshire showed that Palin remains more interesting to listen to than any other candidate, and she maintains her unrivaled resonance with the Tea Party movement. In Iowa she blasted "corporate-crony capitalism" by contrasting Washington's thriving suburbs with other, struggling parts of the country, and she touted her Alaska record of taking on Big Oil and other special interests--showcasing the maverick appeal that enticed John McCain to tap her as his running mate three years ago....

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