The poll is of REGISTERED voters, not likely voters.
I means nothing.
A swing of 28% among Indies in 3 weeks!!! Wow. Who would buy that junk?
They must still be presumed to be voting Democrats.
There are, after all, no real independents ~ some part of your life ~ job, geography, relationships, church, social groups ~ is tied up in some way with the great coalition parties we call Democrats or Republicans.