Well of course he does….
Check this out:

Julian Castro, the secretary of the Department of Housing and Urban Development whose name has been floated as a potential Hillary Clinton running mate, is calling the investigation into Clinton’s Benghazi-related emails a “witch hunt” and a “sideshow.”

“This thing has been studied to death by Republicans and Democrats,” Castro said of Benghazi during an interview Sunday on CNN’s “State of the Union.”