By Brian Williams, Anchor and managing editor
Tonight you'll see us in our familiar Los Angeles bureau, largely because we were anxious to gather our debate/political team here on the West Coast. We're here to prepare for tomorrow night's Democratic debate (9pm ET on MSNBC) which seems to take on more importance with each passing hour of the campaign. And please remember, it's not too late to submit a question of your own -- something you'd like us to ask the candidates tomorrow night. Click here to see how; we'll get to as many of your questions as we can.
We have a lot of campaign news to cover tonight: Ron Allen is with the Republicans, Andrea Mitchell covers the Democrats. For good measure, we'll also report on medicine, the Saudis, the environment, cars and gender (the start of a special series called "The Truth About Boys and Girls"). After tonight's broadcast from Los Angeles, we head to Las Vegas for a debate prep session upon arrival -- another tomorrow morning and another tomorrow night before air time. It's the definition of a "working" trip to Vegas -- luckily, I don't gamble, so its not like I'm fighting a huge temptation to hit the blackjack tables instead of preparing for the debate. We'll originate Nightly News from Las Vegas tomorrow night, and then we'll peel away for that final prep session. Lester Holt will update the later feeds of Nightly News because I'll be tied up with the debate while those are airing. We'll even have a little something for all those of you who have written us about the proper pronunciation of "Nevada." That's pretty much the way things will work for the next 24 hours -- we hope you'll be with us to watch it all.