In Barack Obama's speech before AIPAC today, in addition to saying he would do anthing in his power to prevent Iran from obtaining nuclear weapons, he also said

the Iranian Revolutionary Guard, who Quds Forces have rightly been labeled a terrorist organization.   Senator Barack Obama's Spoken Remarks before AIPAC on June 4th 2008 http://www.nytimes.com/2008/06/04/us/politics/04text-obama-aipac.html?pagewanted=5&sq=aipac&st=nyt&scp=3

which sounds remarkably similar to

that the united States should designate Iran's Islamic Revolutionary Guards Corps as a foriengn terrorist organization...and place the Islamic Revolutionary Guards Corps on the list of Specially Designated Terrorsts.  Kyl-Liberman Amendment
http://www.talkingpointsmemo.com/docs/kyl-lieberman-amendment/?resultpage=8&

yet inconsistent with

Obama opposed the Kyl-Lieberman amendment.  Barack Obama's website
http://www.barackobama.com/issues/foreignpolicy/#iran