With Louis CK on his way back to Pawnee next Thursday night, we have some more exciting Parks and Recreation casting news:

Bradley Whitford will guest star on an upcoming episode as a councilman who bears more than a slight resemblance to the actor's most famous character, Josh Lyman on The West Wing.

In fact, Executive Producer Michael Schur tells The Huffington Post that the title of the March episode - "Live Ammo" - is based on a line of dialogue from a West Wing episode, one actually uttered by Parks regular Rob Lowe during his stint on that Emmy-winning drama.

Sadly, though, Lowe will not share any scene with former co-star Whitford.

As for the election itself, Schur said the results will be revealed on the season four finale.

"Since we came up with the idea to have [Leslie] run, we’ve spent a part of every single week discussing the pros and cons of having her winning and her losing," Schur said. "And there are many to both situations. And so we’ve chosen a path that I think maximizes the pros and minimizes the cons."

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.