Adviser 'told Clinton to target Obama's roots'

Hillary Clinton’s top campaign strategist advised her last year to cast presidential rival Barack Obama as having questionable “roots to basic American values and culture” and use the theme to counter the image that his background is diverse and multicultural.

Mark Penn wrote in a March 2007 memo to Mrs Clinton: “I cannot imagine America electing a president during a time of war who is not at his centre fundamentally American in his thinking and in his values.”