Yes, an attempted crime is a crime just the same. If you try to rob a bank but leave with no money...it is still a crime. Extortion is a crime regardless if you’re successful in getting what you wanted or not.
A committed crime, attempted crime, and discussed crime are all very different. The punishments for each are very different as well.
Let's say there is an actual act and smoking gun. Trump did it. Okay, Trump strong armed somebody. That happens everyday. Literally, how do you think bills get passed and countries agree to trade deals? Arm twisting, negotiating, back scratching, etc...
The appropriate punishment is the issue. Impeachment? Really, that's the precedent? From now on if a President or any politician participates in a little "Hey you're going to do this and then I'm going to do that" they have to be removed from office?
Let's say Trump attempted to do such a thing. There's a smoking gun and proof beyond a shadow of a doubt. Okay, what's the appropriate punishment for an attempt? Again, and more importantly, what is the precedent you want to set for something that basically amounts to some tough talk and attempted negotiations that didn't really bare fruit?
Let's say Trump talked about it with some people but that's all it ever amounted to, some talk. What's the proper course of action for talk?
Hell, the one good thing that would come from a Trump impeachment, is that everyone else could just as easily be impeached?
Let's see what Nancy and Schiff have done over the course of their careers, and bring it out to the public...same goes for all government officials...I mean hell, she just took a convoy to Israel...What did they talk about, was there any kind of "hey this for that..." going on?