Obama told MSNBC host Al Sharpton that “Jim Comey is a good man. And I do not believe that he is in any way trying to influence the election one way or another.”

But Comey’s decision has been attacked by those who say the letter is vague and open to misinterpretation so close to a pivotal U.S. presidential election.

Obama said that traditionally investigators and prosecutors have been independent of politics and “What I have said is I want all of us to think about maintaining these norms.”

“When you are investigating a case then unless you have unearthed something, you need to just do your job,” Obama in Friday’s interview.