if carter had been reelected,the hostages would've been there another 4 years......
That's because Iran prefers republican presidents to democratic ones:
Iranian Goverment Prefers Bush over Kerry
Associated Press
"We do not desire to see Democrats take over." Historically, Democrats have harmed Iran more than Republicans, said Hasan Rowhani, head of the Supreme National Security Council, Iran's top security decision-making body.
"'We haven't seen anything good from Democrats,' Rowhani told state-run television in remarks that, for the first time in recent decades, saw Iran openly supporting one U.S. presidential candidate over another.
"'We should not forget that most sanctions and economic pressures were imposed on Iran during the time of Clinton,' Rowhani said of the former Democratic president. 'And we should not forget that during Bush's era — despite his hard-line and baseless rhetoric against Iran — he didn't take, in practical terms, any dangerous action against Iran.'"
The Iranian government blames the Clinton administration for imposition of economic sanctions, while viewing Bush’s opposition as largely rhetorical.
Though Iran generally does not publicly wade into U.S. presidential politics, it has a history of preferring Republicans over Democrats, who tend to press human rights issues.