David Brock his gross. He found a loophole in campaign finance laws so that his Super-Pac could collude directly with Hillary Clinton, he attacked Bernie Sanders on specious, ridiculous grounds (the Podesta email hacks reveal that even other Hillary supporters thought they did more harm than good), and he even paid an army of trolls to attack Bernie supporters online.

David Sirota, on the other hand, is a really good reporter with a lot of integrity. And is a firm progressive (e.g. was a Bernie supporter). I read him regularly.

So this is a big surprise that i'm having trouble wrapping my head around.

This is the line that makes me feel best about it:

The move suggests that a shattered and divided Democratic Party establishment is looking to embrace the combative, progressive wing that backed Bernie Sanders in the 2016 Democratic Primary.

This line, second best:

Sirota replaces Peter Daou.

Daou was Brock's Salacious Crumb, so Sirota replacing him, if he retains his integrity, can only be a step up.