Transcript for Trump friend Roger Stone indicted by special counsel

breaking news. Moments ago in the Russia investigation, Roger stone, you see him right there, president trump's longtime preliminary adviser, former campaign aide has been arrested in Florida charged by special counsel Robert Mueller with obstruction. Witness tampering, making false statements to congress, all connected to what he knew about the hacking of Hillary Clinton's emails during the 2016 campaign and what he told the trump campaign about those our chief justice correspondent Pierre Thomas starts us off. Good morning, Pierre. Reporter: George, good morning. Roger stone, longtime associate and somemes informal trump adviser arrested in ft. Lauderdale charged with several federal felonies, five counts of making false statements and one of witness tampering. Much appears to be about wikileaks which obtained hacked information about the DNC and John podesta then released them during the 2016 campaign. The U.S. Intelligence community concluded the documents which included embarrassing information about the Clinton campaign was hacked by the Russian government in order to help the trump campaign. Stone spoke to campaign officials about wikileaks and information it might have that would be damaging to the Clinton campaign. Stone was then contacted by a senior campaign official who inquired about future releases by wikileaks. According to the indictment, once stone learned that congressional intelligence committees and the FBI had opened investigations regarding Russian interference in the 2016 election, stone took steps to obstruct the investigations. Special counsel claims he made false statements to the house intelligence committee and denied possessing records that contained evidence of his involvement and he attempted to persuade a witness to provide false testimony. George, it's a very lengthy indictment and still poring through it. Much more to come. There is a lot more to go through. We do know it involves communications he had with the trump campaign and with other individuals and then lying about it, full stop to the congress, to the house, to the special committee on intelligence. He is going to be appearing in court later this morning in Florida? Reporter: That's right. Due to have an appearance at about 11:00 A.M. He'll be processed then. We expect to hear from perhaps his attorney and his side of the story. He is very outspoken and claim it's been a witch-hunt and he's been made a target unfairly so but agaique es a very lengthy case laid out of lying and trying to obstruct the investigation. Pierre Thomas, thanks very much. More on this from Dan Abrams. Let's just start out where we are. This is the first indictment dealing with communications with the trump campaign about those emails. Right, this is the first indictment where it becomes clear that the special counsel believes that the trump campaign knew about the hacks before this material was made public. Remember, one of the key charges in this case so far is of the Russians engaged in the hacks. This is related to wikileaks and the key phrases I think from this indictment are that a senior trump official was directed to contact stone about additional releases and about future release. In July of 2016. Then in August stone is requesting specific stolen emails from particular dates. In October, a high ranking trump official is asking about the status of future releases and an associate of a trump official tells stone after the fact, well done. And one of the charges here is false enmisleading statements about communications with the trump campaign and that he spoke with multiple people. That is the point I wanted to get to. We don't know who all these individuals are yet. This will come out as we continue our digging over the course of the day but multiple people in the trump campaign knew about what stone was doing. He was in contact with them. That's right. The most important point to me is who was he talking to before anything was released? If you want to talk to lying about conversations you had with people in the trump campaign after this was released, that's very different in terms of the big picture than who in the trump campaign knew that this stuff existed before it was released. It's important that we go back and look at the big picture here from the day after, basically president trump was elected, he and others on his campaign said -- I asked him point blank at that press conference did you or anyone on your campaign have any contact with Russia and the denials were adamant so it's with stories like this with movements like this we have to go back and look at the narrative that they've been laying out over the last two years on this. Absolutely, but let's also be clear, take one step back here and say still no evidence that president trump was involved in this. Right? This is talking about trump campaign official, et cetera and, number two, no indication yet that there was any direct contact with the Russians. This is about wikileaks, this is about what did wikileaks have, how did they get it? When are they going to rue distribute it. We know from previous indictments, though, that Mueller is going to make the contentions wikileaks got the information from Russian intelligence. Correct, correct, but you're still now -- you're now one step away which is an important distinction between trump campaign direct relationship with Russians and trump campaign knowing about wikileaks. One thing this also does seem to set up, if we now have to look at what these other multiple trump campaign officials said when they were interviewed assuming they were interviewed by the house intelligence committee and senate intelligence committee did they tell the truth? That's the critical point here which is we know that there are multiple trump campaign officials mentioned in this indictment. Many if not all of them have been questioned by the special counsel. Did they tell the truth? The special counsel clearly believes they know from what happened. Again, to that point lots of documentation in here. That's one thing stone is charged for lying about what documents he had and didn't have. He denied he had records and documents then the special counsel says, we know you have these documents. We know you have these records and that's one of the charges he's facing. We'll stay on this all morning long. Still waiting to hear what the president has to say. Other breaking news, the

This transcript has been automatically generated and may not be 100% accurate.