It is officially a two horse race for County Executive. At noon today (or, more likely, approximately 20 minutes after noon) Trent Kittleman announced her candidacy for County Executive.
UPDATE: Dave's got some good coverage (and photos) over at his site. I hope to be able to make the Wednesday event.
UPDATE2: HoCoMoJo is on the scene and has a nice video of Trent and some of her supporters.
Note: There were additional videos, but I suggest you go to the source to check it out.