I give credit where credit is due... but I don't give unilateral credit when there was a massive international effort in place, though.
everyone played their parts.. Obama, Congress, Putin, the UN, etc
if Obama went at it alone, he'd be laughed at by Assad.
the Russian plan was already "unofficially" approved before Obama spoke about "red lines" ( sept 6 versus sept 13)... the US was still seeking authorization to use military force ( which Russia blocked in the UN) a short time later, Putin and Obama talked at the G20 summit.. putin's plan was to bring the weapons under international control... he didn't want military intervention to occur, especially unilateral US military force.
Obama did his part, for which he gets Kudos.. but this whole thing was the Putin show... unfortunately.