ven before the votes are tallied and winners announced, this year's midterm congressional elections already proved that in the wild world of politics, anything is possible.

For example, on Tuesday, a Louisville, Kentucky poll worker was arrested and charged with assault and interfering with an election for allegedly choking a voter and pushing the voter out the door.

The voter wanted to file charges against the unnamed poll worker assailant, and so police were called in to investigate the scene-but it was not immediately clear what sparked the altercation.

Paula McCraney, a spokeswoman for the Jefferson County Clerk, reportedly tells CNN, "That about tops off the day."

But that's not the only story involving an over-aggressive poll worker on Election Day Tuesday. Just ask Missouri Secretary of State Robin Carnahan. As the state's top election official, Carnahan knows the state's election rules inside and out. So you can imagine her surprise when she went to cast her absentee ballot, and was asked by a poll worker to show photo identification.

Carnahan tells CNN that she tried to explain to the poll worker that a photo ID is not necessary to vote in Missouri. In fact, the state's Supreme Court struck down the requirement on Oct. 16 -but Carnahan says she was asked two more times for such identification.

"She didn't know who I was, but when she saw my last name, she asked, 'Are you Russ' sister?' referring to my brother who is a congressman," Carnahan tells CNN.

After checking with her on-site supervisor, the overly-zealous poll worker informed Carnahan that photo identification would indeed not be necessary to cast a ballot.

Despite the misunderstanding, at least, Carnahan can rest assured her state's poll workers are not taking their jobs lightly.