before we leave you tonight, a reminder the entire nbc news team will be closely following the debate in congress and the reaction across america on the fix for the nation's financial crisis. and brian williams, as we mentioned, spent a full day behind the scenes on capitol hill earlier this week as this epic battle waged on for an hour long "dateline" special to air sunday night. here's a preview. >> it's been a tough week. it's been a tough couple of months for that matter. but as i told my members yesterday, i'm a happy warrior. >> welcome to the capitol.