Huffington Guest Hosting On Maddow

It looks like Rachel Maddow might be taking a well deserved day off or two. Arianna Huffington is going to be guest hosting The Rachel Maddow Show tonight on MSNBC at 9pm EST. Boy, if the right wing nutballs were calling MSNBC lefty-liberal-pinko before, I wonder what they're going to say about Huffington as a guest host?