It all goes back to that infamous "red line in the sand".
The World saw that empty threat as a major sign of weakness.
Now, we have the Leaders of Turkey, Iran, and Russia meeting to decide the fate of Syria, and possibly the fate of the entire Region.
Our esteem Secretary of State, Mr Heinze, was not invited.
http://www.nytimes.com/2016/12/20/wo...g-us.html?_r=0
Of course, President Obama has much more pressing duties. Emptying the prisons of felons, denying drilling rights to US oil companies, and making sure that confused citizens know which bathroom to use.
President Trump will definitely have his work cut out for him in restoring the United States to some air of respectability.