the president twitter teases a major announcement about the southern border he'll be making saturday afternoon. "the 11th hour" on a friday night starts right now. good evening once again from our nbc news headquarters here in new york. i'm steve kornacki. brian williams is under the weather. day 729 of the trump administration, day 28 of the shutdown, soon to be day 29. we begin with breaking news. special counsel robert mueller is disputing this buzzfeed report that broke late last night claiming that the president of the united states directed michael cohen to lie to congress about negotiations to build a trump tower in moscow. citing two law enforcement sources familiar with the investigation, buzzfeed reported that trump also endorsed a plan to visit russia during the campaign and to meet personally with putin to advance the deal, and that the president and two of his children, all received detailed and regular updates