Believing that she had something like a lock on the Democratic nomination, Hillary Clinton pivoted to the general election before the Iowa caucus. She refused to apologize for her vote on the war. Moveover, only last fall she took a responsible position on the Kyl-Lieberman resolution urging the designation of Iran's Revolutionary Guard as a terrorist organization. When she did so, Obama hammered her for it.
Obama didn't vote on the Kyl-Lieberman resolution any more than he had on the authorization for the use of miliatary force on Iraq. (He was out campaigning.) Indeed, he didn't even announce his opposition to the bill until after Clinton had voted in favor of it. Nevertheless, he found Clinton's vote a useful tool to use against her and he used it with fervor.The day after securing the Democratic nomination, however, Obama appeared at the AIPAC policy conference in Washington and called for "boycotting firms associated with the Iranian Revolutionary Guard, whose Quds force has rightly been labeled a terrorist organization.