( CNN) President Donald Trump said “we’re going to have to see” when asked about the future of Special Counsel Robert Mueller, who is reportedly examine whether Trump attempted to obstruct justice.

“Well, he is very very good friends with( former FBI Director James) Comey, which is very bothersome, ” the President said in a Fox News clip that aired Thursday. “We’re going to have to see.”

Trump fired Comey over displeasure with how the FBI head was handling the investigation into Russia’s interference in the 2016 election. Deputy Attorney General Rod Rosenstein afterward appointed Mueller, a former FBI director, as special advise to oversee the investigation, including potential collusion between Trump’s campaign associates and Russian officials.