Seriously you are saying firing the person in charge of an investigation does not affect the investigation. Even if he is not involved with the day to day work, he is still the guy who has to request the money and so on. He is involved even if he is not involved, and removing said person is possibly going to jetison the whole thing either with the temporary deputy who is now acting FBI director or with whoever Trump replaces him with once the Senate eventually confirms the new FBI director or Trump recess appoints one.
And while we can't see the future, we can use the past to guide us, we can look at other democracies and what happens when a president fires the investigators into the federal branch...and let's just say it is not good for how many times this was smooth sailing and conductive towards a better functioning democracy.
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Sure Congress has its own investigation, but that investigation is not going anywhere due to congress not wanting to hire people and not wanting to spend money and thus it appears it was not serious as of last week.
http://www.politico.com/magazine/story/2017/04/27/russia-investigations-joke-donna-brazile-215080
7 Staffers, all part time.
Read the whole article I just did one of the most damning quotes but there were several more in the article.
Edit 1 and 2 I forgot how RAFO does its markup and html for Quote boxes.