Herman Cain officially announced he's launched a presidential exploratory committee, making him the first Republican in the race.

Don't know who the hell Herman Cain is? I wrote about him before; he's a Teabagger-friendly radio host and former Godfather's Pizza executive who calls himself "Obama's worst nightmare." Red State makes a case for him here. And say what you will about him: He sure did pick an interesting day to launch a presidential campaign.