* A great, if deeply dispiriting, read from David Atkins on how House Republicans are “electorally immune to their extremism,” and why that means our politics will get uglier and uglier for a good, long while.

* Good stuff from Ed Kilgore, who games out how Republicans could kill immigration reform, while counting on help from a media unwilling to level with readers about what really happened.

* Lawrence Downes exposes the bankruptcy of the GOP immigration position of the moment, i.e., legalization without citizenship. By the way, polls have shown that position pleases no one.

* Steve Benen brings us the latest on the collapse of the IRS scandal, and he continues to ask a good question: where is the accountability for those who hyped it as the next Watergate?

* Jamelle Bouie nails it here: The Tea Party can try to recapture the magic of 2009 all it wants; the anti-Obamacare rage is fizzling, and will inexorably give away as the law’s benefits kick in.

* Paul Krugman: Conservative opposition to Obamacare is fundamentally rooted in an unwillingness to accept any kind of redistribution, which is why their answer to making health care affordable to everyone is more economic freedom.

* Also see Aaron Carroll, who notes that the GOP’s inability to craft a real response to Obamacare is rooted in the refusal to acknowledge that it’s largely a conservative solution.

* MSNBC’s First Read crew pronounces the conservative defund-Obamacare movement effectively dead.

* Kevin Drum gets to the bottom of why defense spending will take an extra $20 billion hit in sequester cuts next year, which could theoretically put more pressure on Republicans to replace the sequester on Dem terms.

* Neil Irwin on why the White House may be uncomfortable with Janet Yellen as Fed chair. It’s still unclear how picking Larry Summers doesn’t mean a major public fight with Dem Senators.

* And don’t miss Dave Roberts’ temporary farewell to the blogosphere. Here’s hoping he sticks it out, and that more of us follow.

What else?

Greg Sargent writes The Plum Line blog, a reported opinion blog with a liberal slant -- what you might call “opinionated reporting” from the left.