‘A sign of a heightened terror environment': 2 dead after vehicle crashes at U.S.- Canada border

Tom Winter, NBC News Investigative Correspondent, Pete Strzok, Former Counterintelligence Agent and Former Assistant Director for Counterintelligence at the FBI Frank Figliuzzi join Alicia Menendez in for Nicolle Wallace on Deadline White House with the latest on the investigation into a explosion at the U.S.-Canada border after a car violently crashed into a border checkpoint.