Story highlights Stein says Clinton's response to email controversy "raises real questions about her competency"

Agrees with calls for House oversight committee investigation

(CNN) Green Party candidate Jill Stein attacked Hillary Clinton on Monday for her use of a private email server as Secretary of State, amid reports that notes from Clinton's interview with the FBI during its probe of the matter would be turned over soon to Congress.

Declining to say whether she thought Clinton should have faced criminal charges from the FBI after its probe, Stein said that the issue "raises real questions about her competency."

"I think there should have been a full investigation. I think the American people are owed an explanation for what happened, and why top secret information was put at risk, why the identity of secret agents were potentially put at risk," Stein told CNN's Carol Costello.

Asked if she thought Clinton should have faced criminal charges based on the FBI's investigation, Stein would only say that "that's a matter that deserves public discussion."

She continued, "There is much more that is coming to public attention about Hillary Clinton's behavior, including the recent revelations about favors bestowed on the Clinton Foundation's donors who got special deals, who got state partnerships."

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