Former Sen. Chuck HagelCharles (Chuck) Timothy HagelPentagon documents hundreds of serious misconduct cases against top brass Obama defense sec: Trump's treatment of Gold Star families 'sickens' me The Hill's 12:30 Report MORE (R-Neb.) believes Russia would be willing to work with the United States on persuading Iran to stop developing nuclear weapons.

Hagel, a former member of the Senate Foreign Relations Committee, appeared on MSNBC on Tuesday to discuss the U.S.