He more or less said this at the time of the "riot," but Twitter hid then deleted it...
In his video then, he stressed very strongly that the election had been stolen, and it was a sad time. I don't think the words were wrong, but his tone and focus was inflammatory.
It's like the story they say about a rebbe in Eretz Yisroel who held that his chassidim should vote for candidate A. The gedolim, however, endorsed candidate B, and they asked all rabbonim to tell their kehilos to vote for candidate B. This rebbe, in subservience to the will of the gedolim, announced to his chassidim that they should vote for candidate B.
On election night, as the numbers came in, it became clear that most of his chassidim voted for candidate A. When the gedolim questioned him about it, he said, "My chassidim are real chassidim. It doesn't matter what the rebbe says, they do what the rebbe really wants."