Chuck "I'm no nail" Grassley has a serious Democratic challenger. Former US Attorney Roxanne Conlin officially announced her run yesterday.

At Bleeding Heartland, desmoinesdem writes that, in the video:

She doesn't mention Senator Chuck Grassley directly, but she outlines the case she will make against him. Career politicians in Washington have lost their independence. Iowans were left behind when banks got bailed out and their top executives got huge bonuses. Grassley voted for the Wall Street bailout, which Conlin mentions twice in this video. No doubt we'll hear more in the coming months about Grassley's ties to various special interests and his votes for tax breaks companies use when they ship jobs overseas.

Daily Kos polling last month showed her trailing Grassley, 51% to 39%. That's a real deficit to make up, but, as kos said at the time, "the potential for a competitive race is certainly there." The populist course Conlin appears to be charting is a good start.