The Washington Post's Dan Balz is arguably the legitimate successor to David Broder, the go-to guy on national politics. His recent column summarizes the status of the races two months before the election.
If you like politics - most COTTonLINE readers do - the whole Balz column is worth your time. On the other hand, if you want a quick summary Balz thinks the GOP keeps the House, and has a better than even shot at winning the Senate.