RNC chairman Michael Steele: Yes, health care reform is Armageddon. Watch.

There’s a lot of nonsense out there about constitutional challenges to the Health Care Reform law on various ‘state sovereignty’ grounds. That’s nonsense. The Nullification Crisis and Civil War settled those issues. But the more serious challenges are based on extremely forward-leaning conservative arguments about the ‘commerce clause’. It seems very out there. Comical almost. And with your average Court, I would think it a trivial concern. But this Court, particularly the four most conservative members, have shown themselves to be not only so ideological but so activist and even so partisan that I’m not sure you can really put it past them. We’re going to do some poking around to find out more, particularly views on this question among the sort of legal academics and would-be judges who cluster around the Federalist Society.

Just to be clear, I’m not saying I consider this at all likely. But I’ve seen a number of things happen lately that I didn’t think at all likely. So I’m watching.

The Chamber of Commerce, a key anti-Reform player and spender, is telling the GOP they can count them out on any campaign for repeal.

None of the Republicans’ angles on torpedoing the reconciliation package in the Senate seem that likely to succeed. But they staked their greatest hopes on the claim that the reconciliation bill impacts Social Security, which could make it out of bounds in the reconciliation process. But tonight Senate Parliamentarian Alan Frumin shot that one down.

Bibi Netanyahu gave his speech this evening at the annual AIPAC conference. And it amounted to one big ‘shove it’ to the president and the administration.

Rep. Randy Neugebauer (R-TX), of “baby killer” fame, tells a local TV station: “I did believe, and still believe, that that Senate bill is a baby-killing bill.” Watch.

Late Update: Neugebauer and his wife also recorded a video that they posted on his campaign’s YouTube account.

President Obama signs the landmark health care reform bill in a White House ceremony this morning at 11:15 a.m. ET. That and the day’s other political news in the TPMDC Morning Roundup.

The politics of abortion has a lot more to do with the heated reactions to the health care reform bill coming from both sides of the issue than does the language of the bill itself.

Former GE CEO Jack Welch said this morning that Republicans expecting big gains in the midterm elections will “get a large shock.” Watch.

“How many former Bush speechwriters does one newspaper need?”

–Former Postie Tom Ricks, on the Washington Post‘s hiring of Marc Thiessen for its op-ed page.