It is widely held that Barack Obama, Sr., goat herder from Kenya, is the father of President Obama. We now know that this contention is probably false. In Obama's autobiography, Dreams from My Father, he identifies Barack Obama, Sr. as his father. This book has been the primary source of information for all who have written about him. Yet two strong supporters of the president -- David Remnick, author of The Bridge, a biography of Obama, and Janny Scott, author of A Singular Woman, a biography of Ann Dunham -- have expressed doubts about the factual basis of Dreams: Remnick:...