And that was that. Nothing interesting there. No snub. No long sit-down like the last time they bumped into each other.
The two senators vying for the Democratic nomination, spent their time on the floor chatting up their colleagues and--most definitely--trying to secure some last minute superdelegate endorsements.
Here's what we saw: During an energy vote, Clinton huddles with Sen. Debbie Stabenow, the Michigan Democrat who has endorsed her, while Obama takes a seat and chats up Sen. Carl Levin, the undecided senior Michigan Democrat. (Could they be talking about resolving the Michigan delegate situation, we wonder.)
Minutes later, Clinton is mobbed by her Senate A-team: Sens. Maria Cantwell, (D-WA), Bill Nelson (D-Fla.) Robert Menendez, (D-NJ.) Charles Schumer (D-N.Y.) and Dianne Feinstein (D-Calif.) who huddle around her as she speaks. (Sen. Frank Lautenberg, the uncommitted superdelegate from New Jersey also hangs around the edge of the Clinton bubble.)
Also noteworthy: Clinton is holding a small notepad and a pen, which she frequently scribbles on after speaking to colleagues. (Is she keeping track of superdelegates in the chamber?)
Two feet away, Obama chats with two of his supporters, Sens. Tim Johnson, (D-SD) and Chris Dodd (D-Conn.). He then walks away to gossip with Sens. Edward Kennedy (D-Mass.) and Richard Durbin (D-Ill.) and gets a shoulder pat and an arm grab from Sen. Ken Salazar, the uncommitted superdelegate from Colorado, who walks by.
But just when you think the arm-grab was a subliminal signal that Salazar would support Obama, Salazar heads right for Clinton and chats her up for a good 10 minutes. Confusing but okay. She ends the conversation with Salazar, saying "Thanks. Thanks." But doesn't seem too pleased.
Meanwhile, Lautenberg pulls Obama to the cloak room, where they have a private chat. They emerge and Obama heads for Sen. John Kerry, who is seated and checking his BlackBerry. He sits down next to Kerry. (Reporters in the gallery joke that Kerry is telling Obama not to worry about losing tonight's West Virginia primary. After all, he lost West Virginia, too in '04.)
At the side of the chamber, Clinton looks to be having a serious discussion with Sen. Joe Biden, the former presidential candidate who is still uncommitted. Biden is doing most of the talking. Clinton is doing most of the nodding.
After the Biden chat, Clinton makes her way to another superdelegate, Sen. Robert Byrd of West Virginia. She kisses his cheek. He holds her hand and smiles.