A growing number of Democratic lawmakers are openly questioning whether toppling Syria's Bashar al-Assad should still be a priority amid steady gains by the Islamic State.
The issue came to a head Sept. 16 as a key Senate panel held its first IS hearing since the first batch of 54 US-trained rebels was routed in late July by al-Qaeda-linked Jabhat al-Nusra as soon as it entered Syria. Reports that Russia is beefing up Assad's forces with tanks, troops and artillery has only added to the calls of some Democrats for a new strategy.