he moves on to battle tammy baldwin to see who will be elected for the retiring senator herb cole's seat. here with us, davidnee. thanks for joining us tonight. >> good evening eliot. >> eliot: let's set the stage. how many seats do the republicans need to pick up to regain or gain control of the senate, and obviously that would be the fulcrum around an awful lot would pivot. >> you're looking at four seats if president obama is re-elected. that's the baseline that we're going off of. that's how republicans are planning. and in two of these races that were last night to determine the primary, they are battlegrounds seeds that the republicans are targeting, wisconsin, herb cole's democratic seat that republicans feel very good about because of the environment in wisconsin, because of the success that governor scott walker had. they nominated tommy thompson as a throw. back to the past. you have connie mack, the fourth the son of the former senator down there who has uniform name i.d. because of his father going up against bill nelson. now, connie mack has not run the best campaign, but because of the national