Former Sen. Chuck HagelCharles (Chuck) Timothy HagelGOP lambasts Trump over performance in Helsinki Overnight Defense: Latest on historic Korea summit | Trump says 'many people' interested in VA job | Pompeo thinks Trump likely to leave Iran deal Should Mike Pompeo be confirmed? 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.