Via this Daily Kos diary, I found this news report of a challenger to Tom Petri in Wisconsin's sixth district.
The guy is Vic Spadaro--turn off your volume before you visit his website--a veteran and a successful businessman. He ran an unsuccessful campaign for Assembly in 2004, sure, but, you know, in this season of overwhelming pro-Democratic sentiment . . .
His website is ugly and two years out of date, but his platform is sound. He won't have the kind of national appeal that other "Fighting Dems" will have, but he will draw some support, I'm sure.
More importantly, this means we're four for four in challenging Republican incumbents this year. Go, team!