Roll Call (gated) identifies Shelby and Vitter as the Republican senators that placed the mysterious "hold" on the confirmation of Robert Groves as Census director.
TPM reports that Reid plans to file for cloture on Groves.
Gary Langer says that Shelby and Vitter's objection has been "addressed" and a vote scheduled for Monday.
Ben Smith asks pollsters about independent voters and Obama approval.
Sarah Dutton compares perceptions of Bill Clinton and Obama on health care.
Ezra Klein ponders health care reform's "public support problem."
John Sides summarizes blog reactions to the Johnston/Thorson "Palin Effect" theory.
Andrew Gelman charts Republican vote in 2008 by age, education and race/ethnicity.
Chris Bowers argues that "extreme" ideology groups feel more left out than the "middle."
Mark Penn says 10% unemployment will be a "tripwire" for Obama.
Mark Murray asks, what if Obama's numbers improve this summer?
Mark Mellman and Mike Murphy talk about what Democrats will do with their 60 Senate votes.
Tom Jensen finds a lot of Virginia voters like both Deeds and McDonnell.
Michael Frank parses Rasmussen's Sotomayor tracking.
The Pew Research Center releases a major new survey on Science, Scientists and the media.
Christian, Dimock and Keeter post their AAPOR paper on the geographic fuzziness of cell phone surveys.