By Graham Smith Last updated at 3:00 PM on 4th October 2011 Republican presidential candidate Michele Bachmann's White House bid has been thrown into doubt after a staff exodus, including her pollster and senior adviser, has led to questions about her campaign finances. Pollster Ed Goeas plans to leave the campaign after upcoming debates in New Hampshire and Nevada, and senior adviser Andy Parrish is returning to the Minnesota congresswoman's office where he served as chief of staff. The latest staff changes follow four previous resignations from Mrs Bachmann's campaign team. She is now trailing in seventh place in a new opinion poll of public support for Republican presidential candidates.
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Gaffe-prone congresswoman falls to seventh in poll of GOP candidates
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Pollster and senior adviser are the latest campaign figures to quit
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Mitt Romney now leads the Republican race for the White House
within weeks of the candidate's @placeholder straw poll victory.