the previous sound bite that we played said that the presumption that the police were racist as the wave may be couple years ago, black lives matter and barack obama's presidency, juxtapose that with president trump. we could all say he has the presumption that the police are heroes, that that they deserve his backing and our backing. how much does that ethos affect these rates, or credit? >> there has been a seat change in both rhetoric and policy. it's extraordinary because we did go through eight years were president obama took every opportunity to reinforce the false black lives matter narratives, that we are living through an academic -- that resulted in real demoralization among our police forces and d policing. officers were reluctant to get out of their cars and make that stop at 2:00 a.m. questioning somebody hanging out on a known drug corner hitching up his waistband as if he has a gun