Polling isn't "propaganda" just because you want to believe it is. Pick up a stats book or something, there's a whole field of knowledge about the ins and outs of polling that you don't seem privy to when you try to dismiss it as "propaganda", and both political parties use it extensively to gauge public opinion.

Bluechecks have been panicking on Twitter for months now because they understand very well that it's not just some measure that they can manipulate at will.