* Chris Cillizza on the five things to watch for tonight. This one many be the most important:
If Romney wins — for the sake of argument — Ohio, Tennessee, North Dakota, Idaho, Vermont and Massachusetts — he can make a compelling case to the Republican establishment, which has been loathe to get off the sidelines thus far in the race, that he is the only national candidate left in the field. Whether they go along with that argument is a different question.
Also: How will Romney perform among blue collar whites in Ohio, and will he show improvements among social and religious conservatives nationally?
* Katrina Vanden Heuvel calls it: The real Super Tuesday winners are big money donors and Super PACs, who have revealed the true nature of the post-Citizens United landscape for all to see.
* Ed Kilgore on why Romney’s approach to Iran sounds like “foreign policy as it would be conducted by a seventeen-year-old boy with an addiction to energy drinks,” and why that’s a positive in a GOP primary.
* Senate Dems rush out a video of Harry Reid calling on Congressional Republicans to stop “throwing the word war around so casually,” an apparent effort to support Obama’s message at his presser today.
* Foreign Policy on all the ways Obama’s approach to Iran is very much like that of George W Bush.
Footnote: This idea is being heavily pushed by Democrats, which is a sign of how sensitive they are to attacks from the right.
* The number of advertisers who have pulled out on Rush Limbaugh: 33 and counting.
* Josh Marshall: No, the Limbaugh and Ed Schultz “slut” outbursts are really not comparable, and if anything they reveal a double-standard in Rush’s favor.
* Tim Noah details a raft of other differences.
* More rising confidence? Obama’s Voter Confidence Index in the new NBC/WSJ poll is at its highest point in over two years, excluding after Bin Laden’s death, though it’s four points short of Bush’s in 2004.
* A commitment to complete and total repeal of Obamacare right this second is now a litmus test issue for conservatives, creating a schism between them and Senate GOPers who want to think more strategically.
* And Paul Waldman fleshes out one of this blog's regular obsessions: When will reporters and commentators begin treating Romney’s serial lying as a character issue?