President Trump did absolutely the right thing in killing the perverse "Iran Deal". Senator Ben Sasse had the situation 100% correct. Obama had no more ability to bind the US to a fatally bad deal than he had the ability to raise or lower the sea levels.
Saudi Arabia "supports and welcomes" the move by President Trump and the United Arab Emirates also supports the US withdrawal from the Iran Deal. And Israel? I'll bet they're ecstatic to once again not have a US President that supports Iran a country whose leaders chant "death to America" and who want to wipe Israel off the map. What's the chances do you think that Obama ever visits the US Embassy in Jerusalem?
In my opinion John Kerry should either officially register as a foreign agent or face charges under the Logan Act.
And as far as President Obama's lasting legacy? This might end up being the only thing that survives the Trump Tornado.