This is at least the third thread you've posted this video in. It blows, and does nothing to exonerate trump. The speaker hinges his entire argument on the ground that a special prosecutor likely won't be able to find a federal crime to charge trump personally. This argument sucks for several reasons:
1) So fucking what. A special prosecutor will review all facts pertinent to his investigation. The scope of this one, is rather large. Essentially: to what extent did the Russians meddle in this election and to what extent where members of the trump administration knowledgeable or complicit. Now any specific crimes found to have been violated will be passed on the AG. He can then decide to go ahead and formally charge or proceed however. Nonetheless, the damage isn't contained to just that. The special prosecutor will also give a record of his findings. In a very high profile incident like this, it will likely be given before congress and plastered on every news outlet. If he finds that the russians did meddle, and that members of the administration were aware, how do you think the public will receive that news? A parade for trump because no specific charges can be pinned to him directly?
2) If the contents of the Comey memo are true, then there likely is a federal charge that can be pinned on trump. That of Obstruction of Justice. If trump leaned on Comey to drop an investigation, or if he fired him to impede an investigation, that is Obstruction. No question. How the speaker in that video can so cavalierly declare there is nothing here before an investigation has even begun is just fundamentally retarded.
Now the allegations against trump haven't been proven. We only have an alleged memo from Comey and some leaks to the media from anonymous sources. If they don't bear fruit, then yeah, trump will walk on this one. But we haven't had Comey testify regarding this yet (we'll have to wait for next week), but if these allegations are true, there is certainly at least one federal charge to hit trump with. The same one that brought about the resignation of another president who was facing impeachment.
And I know you keep harping on the speaker being a lawyer (who in Congress isn't lately). But so am I, and a former prosecutor to boot. There is enough to warrant an investigation here. Maybe it leads to nothing, but it certainly can't be dismissed out of hand like the video suggests.
3) The criticism of Trump is more than just that which may be a federal crime. He was informed by the acting AG at the time that Flynn had lied under oath about payments from foreign governments. He was informed by our intelligence agencies that Flynn was compromised. He hired him anyway. While that is no federal crime, it is certainly incompetent and borderline treasonous. Should the special prosecutor find or further fleshout more of the russia meddeling, how is that going to play for trump? Is the argument "sure was fucking retarded, but it wasn't technically illegal" going to carry the day? It may be what trump supporters hand their hats on. But don't expect the rest of the world to just sit so passively.