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: Priebus is one of several current and former White House aides expected to be interviewed by Mueller’s team in the coming weeks. Those investigators  besides looking into whether campaign aides coordinated with the Kremlin to influence the outcome of the presidential election  are also looking into a series of White House actions since the start of the administration  including the firing in May of former FBI Director James Comey.
As head of the Republican National Committee during the presidential campaign  Priebus would have insight into the inner workings of the Trump campaign  particularly during the general election. He also was present during the presidential transition and served as White House chief of staff during times crucial to Mueller investigation  including while Flynn served in the administration and while Trump made the decision to fire  Comey .
In a prepared statement in June to the Senate intelligence committee   Comey  described how Priebus had briefly interrupted a private White House conversation with the president in which  he  said Trump told  him   he  hoped  Comey  would end an FBI investigation into Flynn and  his  contacts with the Russian ambassador.
“After  he  had spoken for a few minutes about leaks  Reince Priebus leaned in through the door by the grandfather clock and I could see a group of people waiting behind him ” Comey’s statement said. “The President waved at him to close the door  saying he would be done shortly. The door closed.”

Reince Priebus interviewed by Mueller investigative team lawyer says