We've been monitoring Gallup's tracking polls in class, and will continue to do so up to the election. I'll add others focused on House, Senate and state races as well, but be prepared to answer questions about the relative positions of the two candidates.
Here's a story on the most recent results: Obama's lead over McCain has shrunk--naturally enough--since the Republicans have dominated the spotlight. The full impact has yet to be measured though, so expect more posts on this prior to Monday's test. Know how much support each candidate is receiving and why.