One hundred fifty years ago this week, one of the largest and bloodiest battles of the Civil War took place at Gettysburg, Pennsylvania. Over the course of three days, more than 50,000 Union and Confederate troops were killed, wounded, captured or reported missing.
Several months after the battle, Abraham Lincoln spoke those six famous words, "Four score and seven years ago," but that wasn't the only Gettysburg Address. There was a second one delivered by Woodrow Wilson 50 years later.
For more on this, we're joined by Brian Resnick, an editor for National Journal.