Assuming Democrats are still around to campaign expect the same milquetoast, center-right bullshit platform of getting things "back to normal" to kill any kind of enthusiasm from their base. Don't get me wrong I voted for Harris but I'm getting really tired of voting against having evil men in power over someone I actually like. I want Bernie Sanders, not Margaret Thatcher Lite.
They'll campaign on abortion and re-legalizing gay/interracial marriage.
Those will require a trifecta of branches, with significant margins in the Senate, which will seem impossible so no one will vote for them because we'll know they can't deliver on what is being promised, just like this time around with Kamala and Abortion.