Credit: Unsplash/CC0 Public Domain Heightened immigration enforcement during the second Trump administration has not expanded job opportunities for U.S.-born workers and is associated with a reduction of employment for U.S.-born men with no more than a high school degree, according to new CU Boulder research . The study also found that employment among remaining immigrants declines 4% on average after an Immigration and Customs Enforcement surge, likely due to a "chilling effect" in which they stop going to work out of fear. The study is the first national assessment of the impact the Trump administration's immigration policy has had on the labor market. It was published by the nonprofit, non-partisan National Bureau of Economic Research . "We show that heightened ICE activity is harming the labor market overall, and we find no evidence that it is benefiting U.S.-born workers," said author Chloe East, associate professor of economics at CU Boulder.…