Earlier quoted context omitted.
It happened. This website has a blurb about it https://censortrack.org/case/joebideninfo . I tried it a few months ago and it was blocked. Here's a screenshot I made of it: https://i.imgur.com/KZa60db.jpg
That website needs proofreading, it does not instil confidence in your case. If it actually happened, it would be trivial to record it happening and to share that recording. But this makes it clear you are just trying to throw more confusion onto the election.
If you want me to screen record the blocking of thedonald.win I can, but I'd rather not screen record my FB messenger page because there's private information there, and editing that out of the screen recording would take some extra work.