This report analyzes and discusses Iran's 2009 presidential election, particularly the campaigns of reformist candidate Mir Hussein Musavi and incumbent President Mahmoud Ahmadinejad. Allegations of vote rigging and election fraud have led to protests by supporters of candidate Musavi and have provoked international attention. This report also discusses the Obama Administration's reaction to the election results. This report also discusses briefly the current relationship between the U.S. and Iran, as well as U.S. concerns regarding Iran, such as Iran's efforts at building a nuclear weapons program.