From The Nation: 

To those who have been following deportation politics in this country, Trump’s policies, as they are now unfolding, have an eerie resonance. They seem to be growing directly out of policies first instituted in the presidencies of Bill Clinton and Barack Obama. True, President Obama liked to talk about “our tradition of welcoming immigrants,” while our new president has tossed such liberal humanitarian rhetoric in the garbage can, instead playing up a harsh nativism. Still, the fact is that two Democratic presidents laid the groundwork for Trump’s developing policies.

https://www.thenation.com/article/clinton-and-obama-laid-the-groundwork-for-donald-trumps-war-on-immigrants/