Updated and expanded (4:00pm): Instead of relying on public opinion polls, which were notoriously unreliable last time around and which–as you yourself ended up conceding–caused you to screw up big time, why not use a proxy–such as online sales of campaign masks–in order to measure public support of the presidential candidates? One of the problems with polls is that “people lie”! Also, polls don’t measure one’s likelihood of actually voting on election day. By contrast, one of the advantages of this particular proxy (online sales of campaign masks), is that if you are willing to purchase (let alone wear in public) a Biden or Trump mask, then you are probably more likely to actually go out and vote.