Seems like most (not all) liberals and conservatives are against any military intervention in Syria. The analysis I cited in post #4 really does seem to have some value.
Neither the Arabs nor Russia (nor us, nor Israel) want Iran to come out on top in this whole thing. That analysis comes down to the fact that dialogue with Putin, behind the scenes, is the key to this. However, Putin must also save face in the process of defusing the situation. This may be the very kind of diplomacy that Obama is not good at ... if his handling of Republicans is a gauge. Is there anyone in the administration who does have the diplomatic skills to handle Putin with finesse? So far his "inner circle" diplomats do not seem up to the job needed here.