and it was spun that way by the media because they enjoy a fight. they love to have a gladiator scene. it wasn't my intention. i will not allow it. >> carson turning trump's recent put downs back against him. telling nbc, quote, you don't have to be loud to be energetic. you can find debate coverage here on cnn. the main event airs wednesday night at 8:00 p.m. the undercard debate is at 6:00 p.m. bernie sanders surge and hillary clinton's slide are unmistakable in the washington post poll. hillary clinton is down 21 points in the same poll since july. sanders is up ten points over the same period.