"why is Biden polling at record lows among the groups you mention?"
The biggest issue for the Dotard is how women vote. They make up more than 50% all votes nationwide. A poll from last week had this: In the 2020 election Trump won the men vote 50% to 48%, but Biden won the women vote by 11% (55 to 44). So, women won the election for Biden. Trump needs to make up ground with women if he is to win the election which doesn't seem to be happening atm.
Anyway, long way to go to November. Also, it will come down to three or four states as is always the case. Too soon to read much into polls I reckon.
