I think the intuition of the parent comment is right, but you also make a fair point[1]. I just wonder if you genuinely believe that
any prospective Trump voter could be convinced by
any argument to vote for Harris at this point. I mean after all the things that have already been written and said by so many, even by Trump himself, and have failed to convince ~47% of Americans that he's unfit to be the president.
Honestly, I look at the billions of dollars being poured into political ads, and I can't help but think that it's all a tremendous waste because it's hard to imagine that there's anybody left who didn't already form a strong opinion about Trump at some point over the past ten years.
[1] Like even assuming that prospective Trump voters don't read this newspaper, an especially novel or powerful argument could get picked up and spread by other outlets that do reach prospective Trump voters.