It's obstruction of justice if someone interferes with an on going investigation...even when the President does it. He can legally fire and hire for admin positions but he can not fire the head of the on going official investigation simply because he doesn't want the official investigation in to Russia or his campaign team to continue.
He fired comey because he was a Clinton shill and was engaged in a cover up of her violations of federal law.
I know you desperately want Trump brought down by Russia, but its not going to happen. Your disappointment will continue for at least 7 more years.
Hillary lost, get over it and move on with your pathetic little life.

are you living in a hole in the ground? Trump told all of us, on national TV that he fired Comey due to the Russian investigation....and he told the Russian envoy the day or day after he fired Comey that firing Comey for the Russian investigation took a weight off his back....
AND you dummy, the reason he initially gave was that Comey TREATED HILLARY UNFAIRLY and broke protocol by both of his announcements against her!!
stop your rewriting history bull crap, please!
What Trump said was true. Comey was not doing his job as FBI director. He had a political bias and was doing everything possible to keep Hillary safe from prosecution by making up things about the Trump campaign. He and Lynch conspired to give Hillary a pass on the violation of classified data laws. He did treat Hillary unfairly, he gave her special treatment by saying that she should not be prosecuted because she didn't "intend" to violate the laws and she was too stupid to realize that she had. Lack of intent and stupidity are not excuses for breaking the law.
The Russia/collusion claims have all been debunked. There is nothing there, that's why Mueller is going after underlings for things that have nothing to do with Trump or the campaign.
Now, his next investigation will be into uranium and the Clinton foundations "pay for play" bribery scheme, ready for that, care for none?
NOPE! the claim was comey treated Hillary UNFAIRLY by both of his negative announcements during the Presidential run...comey tried to HURT Hillary and he DID hurt Hillary during the campaign run and in a very MAJOR WAY.... this is what the Justice dept/Rosenthal report stated that was originally thrown before our face as Trump's excuse, until he decided to fess up on Lester Holt and said he fired Comey because of the Russia investigation....
And NO NO NO NO NO, you are wrong on Mueller's team and all of us see that there was MOST CERTAINLY collusion between the Trump campaign and the Russians...Don Jr, Manafort, Kushner, Paige, Gordon, Pappadopolous, etc etc etc etc etc..... What we don;'t know yet and they are still investigating, if there was conspiracy to commit a crime....
Collusion- YES
Conspiracy-We don't know yet