Farrakhan is a prominent leftist. He was at Aretha Franklin's funeral, seated next to Bill Clinton. The leaders of the Women's March are big fans of his.
For some context in case anyone is curious, here is a photo of part of the front row at Aretha Franklin's funeral, featuring (in order) Louis Farrakhan, Al Sharpton, Jesse Jackson and Bill Clinton: https://www.cbsnews.com/pictures/aretha-franklin-funeral-ser...