Monday was the deadline for candidates to drop from races - a la Danny Davis in the Cook County Board President's race - and to file challenges to petitions. WBEZ is on top of the latest developments with an updated candidate list as is Chicago Current. Perhaps the most noteworthy challenges come in the aforementioned Cook Co. race as both Dorothy Brown and incumbent Todd Stroger have had their petitions challenged. Brown's challenge is no surprise given the recent accusations of shenanigans but we're a little surprised to see Stroger challenged but given the heated nature of this campaign, maybe we shouldn't be.

Friday Afternoon Diversion: Earth With Rings