Transcript for Trump orders DOJ to see if campaign was spied on

coming up. Right now to the white house where president trump unloaded on the Russia investigation in a Sunday storm of tweets blasting again as a witch-hunt and demanding an investigation into whether the FBI spied on the trump complain for political purposes. Jonathan Karl has the latest. Good morning, Jon. Robert Mueller, the special counsel has told them he aims to wrap up his investigation by September 1st if HEETs an interview with the president. That's a big if and it comes as the president's legal team and the president himself is waging war now with the justice department saying he wants an investigation of the investigation. After weeks of threatening to intervene in the Russia probe, president trump gave the order Sunday via Twitter. I hereby demand he tweeted that the department of justice look into whether or not the FBI, doj infiltra surveilled the trump campaign for political purposes. And if any such demands or requests were made by people within the Obama administration. The president's fury was sparked by a "New York Times" report that an FBI informant was sent to talk to two trump campaign aides in 2016 about their suspicious contacts with Russians in the weeks before the election. The FBI will not confirm that it used an informant and there is no evidence that there was an FBI informant embedded within the trump campaign but officials say secret informants would have been a critical to assessing the scope of Russia's efforts to influence the election. T day that we human sources is the day the American people start becoming less safe. Reporter: But president trump and congressional Republicans are demanding to know names. Pressing the FBI to release confidential records. Only the release or review of documents, the president tweeted, can give the conclusive answers. Top Democrat on the house intelligence committee says the president's demands are an abuse of power. What they would like this information for is clearly to be of service to the trump defense team and further any narrative they have. Reporter: President trump's personal attorney, Rudy Giuliani, tells ABC news the justice department must turn over all documents related to the alleged informant before the president considers whether or not he will give an interview with special counsel Robert Mueller. In response to the president's demand the deputy attorney general rod Rosenstein issued a statement late yesterday saying he has asked the deputy -- that he has asked the inspector general of the justice department to look into the president's concerns. He said in the statement if anyone did infiltrate or surveil participants in a presidential campaign for inappropriate purposes, we need to know about it and take appropriate action. But, George, Rosenstein is not really ordering a new investigation here. He is simply asking the inspector general to do this as part of an investigation that was already launched last year. It's unclear whether or not that will satisfy the president. Okay, Jon, thanks. More on this from Pierre Thomas and Dan Abrams and let's begin with John left off with you, Pierre. Rosenstein acting pretty quickly, this does not completely fulfill the president's and others' debland to turn it over to congress. Reporter: No, it doesn't but clearly the justice department is saying we will investigate what the president wants us to look into but I got to tell you a lot of current and former law enforcement officials are saying this is pressure by the president who is under investigation, George. Pretty unprecedented, Dan Abrams and there's not any evidence in the public domain that anything inappropriate happened here. There is not a scintilla of evidence this was for political purposes which is the critical question here. And if it had been for political purposes why not disclose it in 2016 when it could have actually hurt Donald Trump politically for political purposes? The other thing that's interesting to me is, the president is now reading this "New York Times" report basing this tweet on "The New York Times" report, so this isn't fake news? This one is real? This one is accurate? It just seems that he's getting very picky about which articles he believes and which ones he doesn't if they fit a particular agenda. Other major article in "The New York Times" yesterday Mueller now investigating another Donald Trump Jr. Meeting in August of 2016 with emissaries of major Arab states. This raises the same legal question we talked about before, which is was a foreign national providing something of value in connection with the election or was someone soliciting that information? Either one of those would be illegal. I shouldn't say soliciting information but soliciting that thing of value. Value. Which is the critical legal question which would be a violation of campaign finance law. Pierre, meantime, we're hearing from Rudy Giuliani that he says that Robert Mueller told him they could wrap this up, the part about the president and the investigation into the president obstructing justice by September 1st if the president agrees to an interview but we're still not there yet on an interview. Reporter: That's right. Look, there is a lot more investigation to take place here. Mueller is still aggressively pursuing whether there was collusion involving members of the trump campaign and the Russians and there are all these witnesses who are cooperating with the special counsel including former national security adviser Michael Flynn and we don't know what're telling him. Okay, Pierre Thomas, Dan Abrams, thanks very much.

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