NEW: Multiple immigration enforcement sources, including senior officials, tell Fox News’ Bill Melugin there’s extreme frustration with DHS officials going on TV and claiming Alex Pretti was planning a “massacre” of federal agents or aiming for “maximum damage,” even after videos showed those claims were false. Sources say the DHS messaging has been “catastrophic from a PR and morale perspective.” One source said they’re so “fed up” they want to retire. Another said “DHS is making the situation worse.” Another added “DHS is wrong” and “we are losing this war, we are losing the base and the narrative.”