use just once per day for dawn-to-dark hold. it is important to use the product as directed. fixodent and forget it. about seven minutes until the top of the hour. welcome back to the most politics in the morning. we're taking a look at the political ticker. stephen colbert is called before congress. is this a joke or expert testimony? >> mark preston live at the cnnpolitics.com desk for us this morning. mark, there's a lot to talk