Looking at the comments, looks like a 50-50 for both candidates [Cool] I think it would be a close call. Would be surprised if otherwise. US has a democratic system that doesn't need its citizens to vote, as voting is not compulsory.
It is not about who is more popular with American eligible voters, rather who is voting. In US politics, there are the true blue Democrats and Republicans, the swinging masses (who actually votes - maybe we can also called them the one-in-every-4er years influencers, or disrupters, depends on who you ask [Facepalm]), the occasional Democrats and Republicans and the political turnoff'ers. Among the group, the turnoff'ers and occasional Democrats/Republicans comprised one of the largest group. That's why in US Presidential elections, the turnout rate is always so low.
I am not a fan of both Harris and DT. To me, both are bad for US and the world in general. I give Harris my vote merely because I can't stand a criminal for President. But, that's just me.