Perhaps if you were to furnish me a link to a reputable source outlining the details of this story. I can't find one.
Here is a story about how the city appealed the court ruling allowing the GOP observers in.
Another one with the background.
Please feel free to spend 2 minutes watching this video (at the bottom, not the nonsense in between). This is the city refusing.
I'd like to again clarify that I am just fine with a Biden win. All we are discussing is why the election won't be one that is accepted by half the country. And there's no reason for it.