Not a crime, but a bad act: Trump met with Lavrov and Kislyak in the oval office. We know because Russia reported this meeting. The Trump administration did not document this meeting. In the meeting, Trump told Russia he didn’t mind their 2016 Election Interference because America has interfered in other country’s elections. This is the same meeting where Trump told them that firing Comey took the pressure off.
Unverified Reporting: Washington Post reported on 9/27/2019 this news based on 3 former officials. They also reported that the documenting of this meeting was kept secret.
Mueller Note: Why didn’t Mueller discover this bad act?