Former White House adviser Peter Navarro’s press conference was interrupted Thursday after he was sentenced to four months in prison. Following Thursday’s sentencing for contempt of Congress, Navarro attempted to argue his innocence to reporters outside the courthouse. But as Navarro spoke, protesters quickly drowned him out with a cowbell and a whistle. Want more breaking political news? Click for the latest headlines at Raw Story. “I’m sorry for the video cameras, that you can’t get clean sound because of this,” Navarro complained. “But this is what — this is what has happened to this countr…