The sanctions and diplomacy gained us no interruption of their nuke program, nor electronic monitoring nor inspections. Five other countries believed it was in their best interests to craft the agreement.
Spare me the Obama bashing, he's 10 times the man and president than the embarrassingly ignorant sociopath you support is.
And don't make me laugh about 'legacy' while the fat-assed jerk is fashioning a disgraceful one of his own.