By Brian Williams, Anchor and managing editor
While somewhat hard to believe, and while tonight's results might be moot in the scope of the fight for the Democratic nomination, the Pennsylvania primary is here.
We had a great hour of coverage on MSNBC at noon -- per usual, Subrata De produced it for me with backup from Megan Marcus -- and we got to work with the very talented team at MSNBC. I'm continually in awe of the volume of coverage they put on the air every day.
We are awaiting the "first wave" exit poll results -- the first indication we will get of any emerging trend. Sometimes they are noteworthy, sometimes they end up being wrong.
Tonight we'll do continuous updates of Nightly News for all time zones, and then we'll drop by and visit the MSNBC studios as part of their coverage. Either way, barring a major defeat for Clinton tonight (it was Tim Russert who said on Nightly News last night: if she loses Pennsylvania, her campaign is "over") it's on to Indiana and North Carolina and beyond. There are 10 contests left.
We'll have it all for you tonight, along with stories featuring some amazing stats: did you know fully 28 percent of all the grain produced in the U.S. this year will go to ethanol production? Did you know the U.S. has fallen to 42nd in the world in terms of life expectancy? Those two stats fall in two separate stories in what we think is a very interesting Tuesday night broadcast. Don't forget UFO's in Arizona! And Florida! It will only have an impact if you're there to watch it! Thanks from all of us.