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A quick head's up on what this is. The Battleground is an aggregation of NPR member stations' content produced during election night. It's curated by the staff at NPR Digital Services, including Eric Athas, Teresa Gorman, Will Snyder, Kim Perry and Erin Teare Martin. The list of participating stations and states is posted at the bottom.

Update 12:09 a.m.: Here's a rundown of what happened tonight, with updated stories.

Democratic Indiana Rep. Joe Donnelly was elected to the U.S. Senate. 

Meanwhile, Republican Mike Pence will be Indiana's next governor.

Kentucky Gov. Steve Beshear will be spending more time around the Capitol in the next few days. 

The governor is recovering from what he office calls "minor eye surgery" to repair a detached retina.

The governor’s office gave little other detail about the surgery or how the injury happened. The governor wasn't injured, his office said. Instead, the detached retina developed this past weekend.

The surgery will require a limited travel schedule for Beshear, which shouldn’t be much of a problem post-Election Day.

Republicans in the U.S. Senate are just as anxious to know the outcome of their races as they are for the White House. A Senate takeover is highly important to conservatives who want to repeal the federal health care law. U.S. Senator Rand Paul of Kentucky says it's tough to predict tonight's results.

"We've got three or four that we're trying to hang on to and we've got three or four more that we could win. I think it's truly an election where you could go to bed tonight and wake up and still not know, and in the end you could be surprised," he said.

Sondra Powell thought it a harmless promotion -- a free small cup of coffee for customers who showed up to her coffee shop, Red Hot Roasters at 1403 Lexington Road, wearing an "I voted" sticker.

It became apparent soon after she opened the coffee shop at 7 a.m. that Jefferson County polling stations were handing out no such stickers.

Powell said she quickly adopted an honor system approach, giving free small coffees to those who simply told her that they'd voted.

The customers were still disappointed, she said.

If you’ve already voted, you may have been confused by the lineup of men vying for the position of Supervisor in the Jefferson County Soil and Water Conservation District. You aren’t alone.

If you need a break from the horse race today, here are some great pieces of audio to enjoy that keep with the electoral theme, but avoid punditry, polls and other things you may need a bit of a release from before tonight.

The ethics hearing for Louisville Metro Councilwoman Barbara Shanklin, D-2, is underway and prosecutors have laid out the road map for the next few days.

A few stumbles in the first few hours of the hearing--including delays by both prosecuting and defending representatives--could push the hearing into Friday. 

Shanklin has been accused of allocating discretionary spending (Neighborhood Development Funds) council members receive to programs that benefited her relatives.

As the voting day has progressed, we've seen some reports of irregularities.. Throughout the day, we'll be surveying our reporters and other news organizations and keep track of significant irregularities in this post.

So far, the big problem has been long lines. Some voters have had to wait hours in line to cast their ballot in battleground states like Florida and Virginia and those affected by Superstorm Sandy like New York.

We'll start with Florida: