a conservative organization released video showing robert klein how they offered cocaine to other conservative activists. >> but this school i know. this is a systemic problem in the teachers' union. >> now they're looking how they could access the school. >> it is a bird? is a plate? >> what is that? >> a controversial undercover video has led to an investigation and the second how they are selectively edited. >> released by the conservative organization claims to be a watchdog of various policy issues showing robert klein who teaches at the middle school offered cocaine to undercover conservative activists but they never showed the actual drug although he brags about his access and how his inside knowledge of the police k-9 dogs allowed him to get away with it. >> they teach us how the drug dogs sniff out the drugs if you put in your pocket. >> the meeting took place 70 hotel conference room in 2015 he says the video is part of an ongoing investigation of alleged abuse by teachers and the teachers' union. >> you can see the official this and i will not tell the the one. he could lose his job