Brad Lander, Claire Valdez, Sen. Bernie Sanders and Mayor Zohran Mamdani at a rally at the Kings Theater in Brooklyn, N.Y., on June 18. Photo: Kena Betancur/AFP via Getty Images ...

FIRST ON FOX: Abraham Alvarez, identified in federal documents as the alleged "ringleader" of a plot to carry out a mass casualty event at the UFC White House event on June 14, is an illegal immigrant ...