The questions Shaheen brought up are legitimate, and will almost certainly be asked if he wins the nomination.
Hillary Clinton-who was married to a man whom even Charlie Rangel has derided for his lax efforts at enforcing our drug control laws-raising these charges is the height of hypocrisy, but that doesn't make the charges themselves illegitimate.
To me, Obama's discussion of this issue has raised some disturbing questions about his fitness for office.