Trump Follows Tried-and-True GOP Formula: When There's Trouble At Home, Start A War in the Middle East

After four years of grandstanding, Trump flip-flopped on Syria last night.  So what changed?  Some picture of suffering children?  There were plenty of suffering children back in 2013.

 

So far today, there has been little to no outrage among Republicans-- many of the same people who said back in 2013 that Obama could not constitutionally take military action in Syria without prior congressional authorization.  What's the difference now?