No party has held the white house with consecutive different nominees in a long time. Meaning to say even if Biden gets 8 years the Dems will likely lose the election after that to either Trump again or a smarter quieter fascist. Thats a trend that I dont think has been bucked since HW Bush came after Reagan. Last time we had two Dems back to back was JFK into Lyndon Johnson. It’s literally just a matter of time and how a small handful of swing states feel about current events before we’re stuck with one again.