Politics

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:

An alleged case of ballot tampering in Oregon’s Clackamas County has implications for races statewide. Officials say a volunteer elections worker is suspected of marking votes for Republicans in races a voter had left blank.

Clackamas County is considered a key swing area in statewide races in Oregon. It's also home to several hotly contested legislative districts that could determine the balance of power in the Oregon House.

**Refresh this page often for the latest updates.**

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.