Photos of victims of the mass shooting at Umpqua Community College in Roseburg, Ore. are displayed behind Portland Police Sgt. Peter Simpson (left) and Douglas County Sheriff John Hanlin (right).
Undersecretary of State for Political Affairs Wendy Sherman testifies before the Senate Foreign Relations Committee in 2014. Sherman was the lead U.S. negotiator on the Iran nuclear deal. She stepped down from her post last week and is now teaching at Harvard.