@13:10
https://www.youtube.com/watch?v=VlLoroQclLU
When asked if his belief that Trump wasn’t placed in office as the result of a fair vote meant that he doesn’t consider him a legitimate president, Carter replied, "Based on what I just said, which I can't retract."
https://www.esquire.com/news-politics/a28225249/jimmy-carter-donald-trump-illegitimate-president-russia/