Former Sen. Chuck HagelCharles (Chuck) Timothy HagelJuan Williams: Trump is AWOL on our troops Former Pentagon chief: Trump 'let down our country' by skipping WWI cemetery visit due to rain Trump’s bogus use of cyber threats to prop up coal 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.