FROM THE WEEKEND…. We covered a fair amount of ground over the weekend. Here’s a quick overview of what you may have missed.

On Sunday, we talked about:

* For all the optimism about avoiding a government shutdown, there are several factors that may yet derail the process.

* One crackpot in Florida, fringe and generally ignored domestically, has created a deadly crisis in Afghanistan through a pointless publicity stunt.

* Nothing better demonstrates the radicalism of Republicans in the 21st century than the introduction of nullification into the conservative mainstream.

* Mitt Romney has a carefully-crafted response prepared for questions about health care. It’s not very good.

* Donald Trump’s extremism and embrace of radical conspiracy theories has made Glenn Beck uncomfortable. No, I’m not kidding.

* With time running out, President Obama spent part of Saturday working the phones, trying to help push lawmakers into a budget deal. There’s a good reason he hasn’t done so sooner.

And on Saturday, we talked about:

* Looking at the 2012 landscape through a demographic lens should probably make Republican strategists uncomfortable.

* House Speaker John Boehner delivered the official Republican weekly address. His habit of saying things that aren’t even close to true continues.

* The right’s favorite “historian” has no advanced degrees, no affiliation with a legitimate academic institution, and makes claims that are demonstrably false. Someone should let Mike Huckabee know.

* In “This Week in God,” we discussed, among other things, a thorough debunking of the Center for Security Policy’s widely-circulated anti-sharia screed.

* The fact that so many Tea Partiers in Congress love agricultural subsidies for their own farms offers a helpful reminder: these folks aren’t actually against government spending, only spending that helps those unlike themselves.

* If there’s a standard line on Libya among the GOP’s likely presidential candidates, it’s hiding well.

* The “Government Shutdown Prevention Act” is one of the silliest bills I’ve ever seen. It nevertheless passed easily late Friday, 221 to 202.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.