We've all had this intuition -- but it takes a careful researcher and writer to prove it is more than a mere intuition, but an actual fact.
Note that Sexton points out a common rhetorical error, that the uptick began after Obama's announcement of DACA. That's not quite true; it intensified after that, but began before it.
It began, in fact, with Obama's first, less ambitious announcement of executive amnesty, his proclamation that he would order Justice to employ "prosecutorial discretion" and not deport anyone except those who were guilty of serious crimes (apart from immigration violations).
http://minx.cc:1080/?post=350993