that's it for us. i'll see you again at 11:00 p.m. make sure to tune into our post coverage debate tomorrow night from 11:00 to 1:00 a.m. cnn with do know lemon starts now. ben carson takes a razor thin lead over donald trump in a new national poll. this is cnn tonight. i want you to listen to what donald trump, him heating things up on the campaign trail a little while ago in springfield, illinois, and jumping into a so-called war on christmas. >> if i become president, we're all going to be saying merry christmas again. that i can tell you. that i can tell you. >> meanwhile, carson prepping for tomorrow night's debate and doubling down on complaints about the scrutiny he faces. plus, a story that's not about sports. it's about america in black and white. two top officials in the university of missouri stepped