==RESENDING, CORRECTING "ALLISON" TO "ALISON"==br br ROUGH CUT (NO REPORTER NARRATION)br br STORY: Democratic challenger Alison Lundergan Grimes has cast her vote in the Kentucky Senate race in a bid to unseat Republican Senate Leader Mitch McConnell.br br Polls show McConnell has a slight edge over Grimes. If McConnell hangs on for re-election, and Republicans win control of the Senate he would replace Democrat Harry Reid as Senate majority leader.