Fraud is something prosecutors can deal with when Trump is no longer able to hide behind his current office.
Putin's Russia did not create the divisions in the US, or distrust in democracy and institutions of government, or fear of each other. What Russia has done is to successfully exploit and amplify the existing division, distrust, and fear that already existed. They continue to do so.
Trump has also successfully exploited and amplified the existing division, distrust, and fear in the nation. He continues to do so. For that, the voters can deal with it by voting him out.
Trump is neither a stable genius or a great businessman. His only talents are as a conman and a bully. The political chaos he created worked for him in a relatively stable 2016, barely. It remains to be seen if that will work in an already chaotic 2020.