> I wonder what party?.....................
Party affiliation doesn’t matter.
They wait until 15 or 20 minutes before the polls close and any registered voter who didn’t vote by that time gets their vote registered by the party running the polls.
Furthermore, voting machines come in in the morning with 3-5 votes for the incumbents already.
That may happen in some places, but not where I work the polls. The four poll workers are required to be two from each major party. Even if we or they wanted to do so, we could not vote for other individuals without the other side's cooperation.
That's not to say that some RAT poll workers wouldn't register Republican to get an all RAT crew in some precincts. But they'd probably have to wait until after the polls closed to do their dirty deed, and the machines time stamp everything.