The Mueller Report was merely one part of the solution. And not even the most important part.
The problem which needs to be solved is that Trump is President.
After the shock of a stolen election, Democrats needed to find a response. For 2 years, the GOP controlled Congress, and literally no oversight was exercised. Paul Ryan and Mitch McConnell allowed Trump to violate numerous Constitutional provisions regarding Executive behavior, essentially becoming accessories to Trump.
But in 2018, a blue wave gave back control of the House, and the oversight has just started.
The Mueller Report is one part of the oversight process, but parts of the problem have been given over to other Agencies in many states.
We must trust that the House will exercise proper oversight over the Executive Branch, and that these Committees will find evidence of more Trump crimes.
And leading to 2020, we must work to ensure that another blue wave retakes the Senate, and the Presidency.
But even if this happens, Trump and his crime family must be brought to justice.