Don't be so sure about that. They have two precincts vote at the location where we vote and even though we had to wait in line for over an hour to vote, while the other side of the gymnasium where the other precinct voted, their line usually didn't have anyone in it, BUT they still would not allow people to use the voting machines on the other side.
That decision is up to the precinct chairman. If there were Republican poll watchers there, they could have called their designated attorney/representative, he would call the office of elections and the matter would be addressed. Whether it would have been resolved or not is another matter.