There was one meeting (I think) in his office. Sessions didn’t disclose that under oath but went on to say he had the meeting but did not discuss the campaign when evidence of the meeting came to light. This article suggests that he did discuss the campaign with Russia. That said, I don’t think there is anything illegal about the discussion at all. The problem would be hiding it.
Artful reporting. Sessions testified they discussed Ukraine etc and disagreed. If the ambassador said in his report that Sessions believed Trump might win, now they also “discussed campaign related matters”. The article is BS.