But, wait, there's more -- in his "Second Presidential Finding Memo" Obama authorized additional CIA covert action in Syria back in 2012
2012: WASHINGTON, Aug 1 (Reuters) – President Barack Obama has signed a secret order authorizing U.S. support for rebels seeking to depose Syrian President Bashar al-Assad and his government, U.S. sources familiar with the matter said.
Obama’s order, approved earlier this year and known as an intelligence “finding,” broadly permits the CIA and other U.S. agencies to provide support that could help the rebels oust Assad.
http://www.huffingtonpost.com/2012/08/01/obama-secret-syria-order_n_1730712.html?tw_p=twt
At that time, the real fighters were primarily Al-Qaeda. There were others, but these were the experienced fighters. Their goal? They were not after establishing a Syrian state but an Islamic State. While Obama's objective was regime change first, at the same time, this was also as much as the actual origin of ISIS as anything else you can point to. The CIA and McCain (+other Rs) were all on board with regime cgange at this time too.
Put this in light of the Kerry audio and the picture becomes more clear.