half of the entire trading volume on the first trading day after they got the news. >> reporter: collins, his son and his son's fiancee's father all questioned by the fbi in april and are now charged with lying about what really happened. >> here's a better inside tip for those who think they can play by a different set of rules. do not lie to special agents of the fbi. >> reporter: collins already under investigation for promoting innate, denying to wolf blitzer he encouraged former secretary tom price or anyone else to purchase its stock. >> did you encourage him to buy stock in this company called innate immu no therapeutics? >> absolutely not. it was not insider trading or unethical. >> we know in western new york know that donald trump is not merely a candidate. donald trump is a movement. >> reporter: collins was the first congressman to endorse the president and has been active in