It’s DISHONEST politics.
It’s despicable.
It is dishonest, it’s all about manipulating the average of polls (which is in itself mathematically dishonest, but that doesn’t stop them either). If the average makes it appear to be close, that will mean more eyes watching their breathless return shows tomorrow and perhaps they’ll stick around a little longer watching, driving up ratings and making advertisers a little happier. They need to create an event and keep it going as long as possible before the jig is up. They will drop this poll down the memory hole and you’ll never hear about it again. No recriminations for inaccuracies. The pollster did their [real] job...they might even get a bonus from the network. They don’t want accuracy, they want eyes watching their programs tomorrow.
HONEST politics is an oxymoron. By definition and design, politicians are liars.
And much of it is despicable too, I'll give you that. Especially the way democRATS use it.