now, harry sendek. how significant is this? this just increases the pressure on paul manafort. the government need to convict him. they need a conviction. acquittal would be devastating. in a case like this involving paper crimes, to be able to show witness tampering provides real evidence of criminal intent that the government will need at trial. do you think this offers any indication of where mueller is in terms of wrapping things up? >> although he's made substantial progress, it's fast, actually, we've yet to se-- you compare it to white water or watergate, much faster. but at the same time, we haven't seen charges arising out of the hillary clinton or democratic national committee e-mail leaks. we haven't seen any charngs arising out of the obstruction of justice, so they have work to do. >> did they tell you where this is headed? >> in a place that they feel they need to get manafort convicted and hopefully for their purposes, becoming a cooperating witness. later this year. because he was at the trump tower meeting where so-called collusion may have happened. >> still s