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Maggie Williams, former chief of staff to then-First Lady Hillary Clinton, has agreed to join Hillary's presidential campaign as an unpaid day-to-day adviser, as will famous Democratic ad man Roy Spence, an on-again-off-again Hillary adviser for months.

The decision to bring Williams and Spence into Hillary's tight inner circle was driven by former President Clinton and other voices in the Hillary campaign clamoring for a shakeup to reverse her defeat in Iowa and an expected defeat tonight in New Hampshire.

Others are likely to join Hillary's campaign on a volunteer basis and team Hillary is putting the full-court press, if you will, on Bill Clinton's former White House political director Doug Sosnick, who now works for the NBA. 

Mike Emanuel currently serves as chief congressional correspondent for FOX News Channel (FNC). He joined FNC in 1997 as a Los Angeles-based correspondent.