Sunday on State of the Union

U.S. Secretary of State Hillary Clinton checks her PDA prior to departure in a military C-17 plane from Malta bound for Tripoli, on October 18, 2011.

(CNN)Former U.S. Ambassador Scott Gration worked under Secretary of State Hillary Clinton and was forced to resign in part for using his personal e-mail for work. He joins us for an exclusive about the Hillary Clinton e-mail controversy.

Rep. Darrell Issa (R-CA) and Rep. Adam Schiff (D-CA) on whether former Secretary of State Hillary Clinton violated government policy by using a personal e-mail account.
Lanny Davis and S.E. Cupp on what the e-mail debate means for Hillary Clinton and the Democrats in 2016.
    Former Attorney General Alberto Gonzales and LZ Granderson on the Justice Department's Ferguson report and 50 years after Selma.
    Former Senator and Vietnam veteran Bob Kerrey and author David Maraniss on the 50th anniversary of U.S. combat troops arrival in Vietnam.
    Michael Smerconish hosts State of the Union on Sunday at 9am and Noon ET on CNN.