Investigators look at why a plane was allowed to take off as President Trump's helicopter approached

Investigators are looking into an apparent violation of safety procedures when a commercial jet took off as President Donald Trump's helicopter approached Ronald Reagan Washington National Airport. The FAA and NTSB are investigating the incident, which occurred in heavily congested airspace following protocols put in place after a midair collision last year. Furthermore, records show that communication confusion was noted between Marine One's pilot and air traffic control regarding the flight clearance.