>> well, it may or may not be. there is no reason they have to drop out. if gingrich comes in with a large block, second largest number of the delegates, can he make a lot of trouble. and if there is a second ballot, admittedly hasn't happened in 60 years. if there is, who knows what happens. improbable but not impossible. >> bill: thank you, we appreciate it plenty more as the factor moves along this evening. tom brokaw demanding mitt romney stop using his likeness. is it legal. sarah palin will be here to opine on all the negative campaigning. we hope you stay tuned to those reports. ouncer ] is zero worth nothing? ♪ imagine zero pollutants in our environment. or zero dependency on forei oil. ♪ this is why we at nissan built a car inspired by zero. because zo is worth everything.