Obama/Clinton are the ones to blame for the 400,000 dead.  Drawing the "red line", calling for regime change and supplying  weapons to the rebels caused the high losses.  If we had not gotten involved,  Assad with Iran's help could have taken out ISIS and other rebels with loss of life of less that 40,000.  (Keep out of the middle east except to support Israel.  Regime change by US has got to stop!  We can't install democratic government in an country that has NO history of democratic background.)