Impeachment evaporating? I think not, not even a little. That's because the collusion investigation is but one of many. Muller's work is done. Several other investigations are underway.
Regarding the Barr letter about the Muller report, the most impressive paragraph to me at this point is this one:
"...the Special Counsel noted that, in completing his investigation, he employed 19 lawyers who were assisted by a team of approximately 40 FBI agents, intelligence analysts, forensic accountants, and other professional staff. The Special Counsel issued more than 2,800 subpoenas, executed nearly 500 search warrants, obtained more than 230 orders for communication records, issued almost 50 orders authorizing use of pen registers, made 13 requests to foreign governments for evidence, and interviewed approximately 500 witnesses."
That is an impressive body of work. Muller's integrity and competency were highly praised by Democrats and Republicans when he was appointed as special counsel, and despite Trump's many attempts to smear Muller, Muller's integrity remains intact. When Muller oversees an investigation of this thoroughness and scope, and issues a report that states, “[T]he investigation did not establish that members of the Trump Campaign conspired or coordinated with the Russian government in its election interference activities,” it is reasonable and wise to accept that as a fact.
That said, we have not yet heard from Muller or seen his report. We will. Congress is certain to call on him to answer questions and Barr has indicated a willingness to release as much of the report as the law and Justice Department policy allows. The sun shines brightly on Trump today and there are a whole lot of long-face Democrats and anti-Trump journalists on TV tonight. The clouds will likely form again when the actual report is publicly available and questions are put to Muller.
One question I would ask if given the chance is why did you not "make a traditional prosecutorial judgment" on the obstruction question? Was it because you were ordered by Barr not to? Was it because you felt it best to simply turn the question over to congress? Was it because you could not make up your mind because the evidence cut both ways? Was it because the Justice Department rule that prevents indicting a sitting president rendered moot the obstruction question?
I'm sure someone in congress will ask Muller that question. I'm looking forward to the answer.
Finally, I'll say I'm grateful this investigation was initiated and allowed to proceed to its natural end. For far too long, we've been listening to opinions, charges, counter charges, breathless media reports pro and con, and endless clap-trap about the collusion question ... all without factual basis. When released, the Muller report will soon provide real facts that will better inform our ongoing political debate.