martin. but the president, to get your viewers up to date, just spent about two hours over on ivy street, justthe democratic national committee headquarters doing some debate prep. we can presume that john kerry was there. let's look at john kerry's experience in this kind of setting. just go beyond the 2004 debates with then-president bush when john kerry was the democratic challenger. he had a series of debates way back in 1996 when he was a sitting senator with another republican governor of massachusetts who was trying to unseat kerry. his name was bill well. they had three debates actually that were epic in scale. so john kerry is clearly battle tested. the president is going to go to ground. he's had some fund-raisers. he just finished one. he's on his way to senator jay rockefeller's house but on sunday he heads to hend henders nevada. they don't want to be in d.c. for this debate camp as we're calling it around here. training at altitude in nevada, preparing for wednesday night in denver when so much is on the line, martin. >> sounds like a boxing match. nbc's mike viqueira, thank you,