Isn't Trump firing James Comey on the spot after saying he would do an investigation on Trump Obstruction of Justice?

I get where you're coming from but not much has been found on trump, even without comey investigating, heaps of stuff has come out about Hilary from independent investigators, same as trump, not as much because he's better at hiding it, not good but better than hilary, there's no way comey didn't find anything on Hilary, he just lied about it, all three of them are pretty shady