Iranian President Mahmoud Ahmadinejad is not a well man.
Besides being a first class loud-mouth thug, apparently he rigged his own election. For all the detractors George W Bush had, most Americans still respected that he won the 2004 and 2008 election, each with record numbers. Only the most partisan American thought otherwise. In Iran, however, Ahmadinejad claimed victory much as Saddam Hussein once did in Iraq. No one seriously thinks of Iran as a democracy.
To help ensure 'victory', Ahmadinejad had his military kill a protester.
Obama will have his hands full.