“It is now very clear that there were two separate agreements, one the official agreement with Carter in Algeria, the other, a secret agreement with another party, which, it is now apparent, was Reagan. They made a deal with Reagan that the hostages should not be released until after Reagan became president. So, then in return, Reagan would give them arms. We have published documents which show thatUS arms were shipped, via Israel, in March, about 2 months after Reagan became president.”
Former Iranian President Abolhassan Banisadr
https://inteltoday.org/2020/11/04/on-this-day-iranian-students-storm-the-u-s-embassy-in-tehran-november-4-1979/