Close representatives beg to differ, despite Congressional inquiries (which are by definition politically driven) not finding sufficient evidence. Several credible people either involved or in positions of know stand by the allegation.
> Nevertheless, several individuals—most notably, former Iranian President Abulhassan Banisadr, former Lieutenant Governor of Texas Ben Barnes, former naval intelligence officer and U.S. National Security Council member Gary Sick, and Barbara Honegger, a former campaign staffer and White House analyst for Reagan and his successor, George H. W. Bush—have stood by the allegation.
[0] https://en.wikipedia.org/wiki/1980_October_Surprise_theory