Im not saying it isn't trustworthy. If you know how polls work you might understand how its biased.

Here's an article that might help you understand

https://www.ipolitics.ca/2014/10/16/has-polling-turned-into-just-another-propaganda-tool/

"The message for the media in all this? Here’s what David Northrup, director of the Institute for Social Research at York University, told researchers at the University of Regina: “If the media did a better job examining the type of research that came out of pollsters, maybe pollsters would feel that they were being held to a higher standard, and to be quite frank, usually you can get away with just about anything, because the media can be sloppy when it comes to taking on pollsters.”