In 2008, Barack Obama's campaign team accused Hillary Clinton's beleaguered staff of mounting a desperate dirty tricks operation by circulating a picture of him in African dress, feeding into false claims on websites that he is a Muslim.

Obama's campaign manager, David Plouffe, described it as "the most shameful, offensive fear-mongering we've seen from either party in this election."  Obama spent much of the campaign stressing he is a Christian, not a Muslim, and did not study at a madrassa.

This isn't the only evidence to suggests the Clinton campaign was behind many of the questions about Obama's origins. 

Clinton's 2007 campaign manager Mark Penn circulated a campaign strategy memo in which he suggested attacking Obama for  not being "fundamentally American" and targeting then Senator Obama's "lack of American roots."