the latest polling shows clinton with a four-point lead. she's going to make two more stops in philadelphia. tomorrow night donald trump heading to moon township. that's a suburb of pittsburgh. joining me now is thomas fitzgerald, philadelphia inquirer and national politics writer. you've been following these for a while. what is jumping out to you tonight, this weekend, in this race? >> well, first off, we have a little bit of the fog of war coming over the battlefield at this point. when it gets to this point, people are a little jumpy. democrats are nervous. they really -- you can tell by their behavior. not only katy perry and hillary clinton tonight, but on monday she and the obamas and former president clinton, they're going to hold a big rally. organized labor was out in force