What is the biggest reason Biden is ahead right now?

[It’s so Joever]

Obviously Covid-19.
If it weren’t for that,
-The Democratic primary would last longer
-Biden and Sanders would try to outflank eachother left longer
-Trump would actually be out of the spotlight (maybe not considering he wouldn't like that)
-The economy would continue to grow, or at least remain stagnant (still a Trump victory)
-He would hold rally after rally.
-Biden’s lack of enthusiasm would actually matter.
-Biden would be put on the spotlight.
-Trump wouldn’t lose as many old voters.
-The trade war would simmer down.
-Racial tensions may still occur, although probably not as bad as it was early June in our timeline.

Yes Biden could win, but it honestly would be tilt Trump. Remember how good things were for Trump post-impeachment and right before Covid? That would be the momentum Trump would have.

A super deadly pandemic that killed 100k Americans is going to be pretty significant, believe it or not.