Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: [Hereâs what we know so far about Team Trumpâs ties to Russian interests]
Trump had received private assurances from then-FBI Director James B. Comey starting in January that he was not personally under investigation . Officials say that changed shortly after  Comeyâs  firing.
Five people briefed on the interview requests  speaking on the condition of anonymity because they were not authorized to discuss the matter publicly  said that Daniel Coats  the current director of national intelligence  Mike Rogers  head of the National Security Agency  and  Rogersâs  recently departed deputy  Richard Ledgett  agreed to be interviewed by Muellerâs investigators as early as this week. The investigation has been cloaked in secrecy  and it is unclear how many others have been questioned by the FBI.
The White House now refers all questions about the Russia investigation to Trump âs  personal attorney  Marc Kasowitz.
The obstruction-of-justice investigation of the president began days after  Comey  was fired on May 9  according to people familiar with the matter. Muellerâs office has taken up that work  and the preliminary interviews scheduled with intelligence officials indicate that his team is actively pursuing potential witnesses inside and outside the government.
[Inside Trumpâs anger and impatience â and his sudden decision to fire  Comey ]
The interviews suggest that Mueller sees the question of attempted obstruction of justice as more than just a â he  said   he  saidâ dispute between the president and the fired FBI director  an official said.
 Comey  confirmed publicly in congressional testimony on March 20 that the bureau was investigating possible coordination between the Trump campaign and the Russians.
Comeyâs statement before the House Intelligence Committee upset Trump  who has repeatedly denied that any coordination with the Russians took place. Trump had wanted  Comey  to disclose publicly that  he  was not personally under investigation  but the FBI director refused to do so.
Coats told associates that Trump had asked him whether Coats could intervene with  Comey  to get the bureau to back off its focus on former national security adviser Michael Flynn in its Russia probe  according to officials. Coats later told lawmakers that he never felt pressured to intervene.
Republican lawmakers seized on Comeyâs testimony to point out that Trump was not in the FBIâs crosshairs when  Comey  led the bureau.
âI expect loyalty â Trump told  Comey   according to written testimony

Special counsel Robert Mueller is investigating Donald Trump for possible obstruction of justice officials say