* Gallup: Americans are exactly split, at 46-46, over the Supreme Court’s health care ruling. Indenendents narrowly agree with it, at 45-42, though that’s within the margin of error.

* No, Americans do not support full repeal. More from Gallup:

When asked what they want Congress to do now that the high court has upheld the 2010 law, 31% say they would repeal the law entirely and 21% would keep the law in place but repeal parts of it. A quarter of Americans swing in the other direction, saying they would like Congress to pass legislation to expand the government’s role in healthcare beyond what the current law does. Thirteen percent want to keep the law in place and do nothing further.

Less than a third of Americans support full repeal, which is the position of Mitt Romney and Republicans. As I noted earlier, even if the overall law remains unpopular, public opinion is very conflicted on repeal, with large numbers favoring repeal of only unspecified parts of the law rather than blowing it up entirely. And the case for full repeal will only get weaker, now that the law has been enshrined by the High Court as constitutional.

* If Obama’s mandate is a tax, as multiple Republicans have been claiming since yesterday, then guess what: Experts say Romney’s mandate is a tax, too.

* Matt Lewis knocks down the claim that the SCOTUS ruling was somehow a victory for conservatism, rightly noting that the restriction on the commerce clause is largely irrelevant.

* The Associated Press does a nice job revealing the clear downside for Romney in the SCOTUS ruling, which has revived memories of his own use of the mandate and his subsequent contortions over it.

* The New York Times delicately notes that Romney is under “increased pressure” to say what he’d replace Obamacare with, and reports that his alternatives would put less emphasis on the uninsured.

* If it’s Friday, it’s time for Steve Benen’s tally of Romney’s most glaring falsehoods and distortions of the week.

* Ron Brownstein does a deep demographic dive into what recent polling tells us about the strengths and weakness of both candidates in a presidential race that’s standing on a knife’s edge.

* David Plouffe puts out a memo urging Congressional Dems to go on offense on health care and taxes, and not to get spooked by the GOP message that Obamacare is a massive tax hike.

* Darrell Issa invokes the Menendez brothers in criticizing Eric Holder, again making it crystal clear that the crusade against Holder is not at all personal and solely about legal and substantive objections to his conduct.

* And the more serious point: As Jonathan Bernstein notes, the Fast and Furious debacle is only the latest sign that basic Congressional oversight has broken down amid scandal-mongering on both sides.

What else?