The company, working with FireEye, found technical and IP information related to the Islamic Republic of Iran Broadcasting.
The White House said DHS already has the authority to assist states in protecting elections.
The social media company banned the app in a purge that saw 400 additional apps suspended.
Volunteers working with the Michigan Democratic Party were simply simulating a phishing test against the voter database.
Many of the pages, groups and accounts originated in Russia and Iran and targeted persons in the U.S., U.K., Middle East and Latin America.
Attorney Lanny Davis, said Michael Cohen is willing to share whether or not President Trump knew in advance about Russia's hack of the Democratic National Committee (DNC).
The university discovered the intrusion by an unauthorized third party on the day after it first occurred, but only realized data had been breached through a report from outside security investigators on July 31.
The former CIA directors said clearances should be revoked for security reasons, not political differences.