* I’m still skeptical, but Bob Shrum makes the case that if the Supreme Court strikes down Obama’s signature domestic achievement, it will guarantee him a second term.

* Steve Benen on what passes for a health care policy discussion in Republican National Committee circles: Manipulating audio of the Solicitor General’s arguments before the court.

I’d only add this: Now that Obamacare’s demise is a real possibility, when will the press get serious about asking Republicans what they would replace Obamacare with?

* Need another “limiting principle”? Jeffrey Rosen obliges.

* Ed Kilgore: The threat to Medicaid revealed in the SCOTUS arguments is getting little attention, but it could have frightening and far reaching consequences for our basic form of government.

* Jon Chait sets the record straight: “the shock of the liberal analysts who expected a landslide does prove they misjudged the case, but their error lies not in underestimating the arguments, which they imbibed closely, but in overestimating the Republican justices.”

* Will the Supreme Court side with Tea Party rhetoric against the idea that government can act to fix a problem afflicting tens of millions of Americans?

* Mitt Romney rolls out another canned attack on Obama:

“In Barack Obama’s Government-Centered Society, the government must do more because the economy is doomed to do less,” Romney said. “When you attack business and vilify success, you will have less business and less success.”

Like Romney’s absurd claim that Obama favors “equal outcomes,” this one lands us squarely in Big Lie territory. To the degree that this is fact-checkable at all, it’s unlikely anyone will ask the Romney campaign to produce any examples of Obama’s alleged vilification of success.

* A Wisconsin federal judge strikes down portions of Scott Walker’s union-busting law, which will help the recall case, though the parts limiting what can be collectively bargained remain intact.

* Milwaukee mayor Tom Barrett jumps into the race to recall Walker, possibly giving Dems a real chance.

* Barrett is already making the vow to restore public employee bargaining rights central to his campaign.

* And an NBC/Marist poll, obviously taken before Barrett’s entry, finds a generic Dem beating Walker by (a statistically insignifigant) two points, with Wisconsinites exactly split on Walker’s approval, 48-48.

With the intensely polarizing recall fight and the presidential and Senate races, Wisconsin will be on full boil yet again.

* Obama gets less blame than Bush for gas prices, perhaps a sign that the public is more sophisticated on the issue that it was 10 years ago.

* Andrew Rosenthal on the separate justice system that has evolved for Muslims.

* And what doomed Rick Santorum? Sam Stein and Jason Cherkis do a deep dive into his anger and radicalism, via his disastrous 2006 campaign, and conclude his flaws did him in again.

What else?