In case you need to know, I received some info from the Harris campaign about the population size of Puerto Ricans in the US. These folks live in the following areas and they vote.
If they were already gonna vote for him prior to this, I doubt this one would turn the tide. Though the timing, so close to election day, is probably most important; not really enough time to purge it from their memory with the firehose of propaganda.
You might not be able to imagine it, but I sure can. Puerto Ricans are proud of their homeland and very political. They won't only vote against Trump, they'll organize to do so. Here in Florida, I see Puerto Rican flags hanging off rear view mirrors all the time. Which is probably the reason why Republicans are nervous here.