I didn't know that. I was a politically unaware moron who voted for Carter.
We didn't have the internet in those days, and conservatives had/have no 'official written memories' of those periods. So, the 'liberals', who control the media conveniently forget to mention this when they discuss what is happening. Carter also screwed around with the elections in Nicaragua so that the Communists could take over, and this is also forgotten, but fortunately Regan got in and helped nullify the rigged carter sandanista elections. this was the reason for the Regan problem with supporting the 'contras', and the democrat congress which cancelled funding for the anti-communist 'contras'.
Carter also screwed around supporting the communists in Angola, but I never could keep up with all the machinations there.
Basically, my opinion is that Carter is a communist, as there are many other examples of his support for communists and communist regimes.