Trump’s already out there calling Biden a socialist, so there’s that.
Trump will continue ratfucking no matter what.
Trump and GOP will continue to try and suppress voter turnout - in primaries and general elections nationwide - with the complete and total support of the right wing extremists who make up the majority of the Court thanks to McConnell.
Simply beating Trump in November isn’t enough. We need to not only retake the Senate, but have to deal with the near-permanent damage Trump and McConnell have wrought. There are no easy answers here. We’re going to need time and votes in every fucking election to make sure that the GOP remain out of power.