The media coverage of thousands of youth migrants/refugees from Central America has dramatically raised the public’s concern about immigration issues in general. The issue went from barely registering a few months ago to now being seen as the most important problem among a plurality of Americans. From Gallup:

U.S. Most Important Problem -- Recent Selected Trend

Whether a gridlocked Congress will actually manage to do anything productive about it in the the last few weeks before they disappear for the summer recess is yet to be seen, but the public concern about immigration is the highest since President Obama took office.