>> reporter: so, steph, i've been at vaccination sites last few weeks, and it has been steady, but you said it at the top of the hour. things are changing so rapidly, the fact that we have so many people waiting in these lines, people wanting to see their families for holiday gatherings, it's no doubt that that booster availability and demand is growing. but also keep in mind that here in new york, we do have a higher vaccination rate than other places in the country, steph. >> lindsey, aaron, dr. osterholm, thank you so much for starting us off this morning. you are making us smarter and safer today. any minute now, trump ally roger stone is expected to arrive on capitol hill for his deposition. he's not expected to say anything, as we get new information about the man behind a powerpoint presentation shared by mark meadows on how to overturn the election. roger stone is showing up to court and it's just going to be a press opportunity. plus, congress -- excuse me.