I gotta disagree.
Very shortly after voting day, I watched hearings from Lansing. They had dozens and dozens of folks who were there - all saying how if a Republican watcher left for any reason, they were not allowed back in, nor was a replacement for them allowed in. These sworn testimonies went on for at least two days.
I tend to believe these folks over the national leftist media and DC narrative.
I think that's true and it wasn't just the Republican observers denied re-entry. In fact, the quote I posted addressed that: