Days after Rep. Michele Bachmann (R-Minn.) snagged Ed Rollins as manager of her nascent presidential campaign, the high-profile strategist is engaged in a war of words with advisers to former Alaska governor Sarah Palin. Palin and Bachmann are potential rivals in the 2012 GOP presidential primary contest. Bachmann is expected to kick off her campaign this month in Iowa, a crucial early state where she spent much of her childhood, while Palin seems to still be considering a campaign, exploring the possibility during a recent bus tour of historical sites.