Remember when Jeff Sessions was criticized for scapegoating immigrants in his remarks criticizing DACA:
https://www.justice.gov/opa/speech/attorney-general-sessions-delivers-remarks-daca
In other words, the executive branch, through DACA, deliberately sought to achieve what the legislative branch specifically refused to authorize on multiple occasions. Such an open-ended circumvention of immigration laws was an unconstitutional exercise of authority by the Executive Branch.
The effect of this unilateral executive amnesty, among other things, contributed to a surge of unaccompanied minors on the southern border that yielded terrible humanitarian consequences. It also denied jobs to hundreds of thousands of Americans by allowing those same jobs to go to illegal aliens.
Well, you have to wonder how is that different from the views of Bernie Sanders and right wing Iowa conservative Chuck Grassley who also blamed immigrants lost jobs and lower wages:
https://www.politico.com/story/2015/06/bernie-sanders-and-immigration-its-complicated-119190
Back then, the Vermont independent warned that the immigration bill a product from then-Sen. Ted Kennedy (D-Mass.) and Sen. John McCain (R-Ariz.) would drive down wages for lower-income workers, an argument thats been used by hard-liner reform opponents. He paired with conservative Sen. Chuck Grassley (R-Iowa) on a restrictive immigration amendment. And Sanders backed provisions characterized as poison pills to unravel the bill, while voting to block the final measure in June 2007.
Sanders history on immigration that year is complicated. But his overall record has come under renewed attention after criticism that the senator was being too quiet on the issue during his long-shot campaign for the Democratic presidential nomination.
You have to keep in mind that Steve King has cruised to victory in Iowa for years by preaching hate, and you have both Steve King and Chuck Grassley seeing eye to eye with Bernie on immigration.
To me this is the downside of Iowa going first. It encourages Democratic candidates to cater to views that are very conservative if not racist, particularly on the subject of immigration. It is no accident that Bernie has been pushing the same "open borders" boogie man as Trump during this campaign even though no candidate supports open borders.