Various airline-related staffing and regulatory changes were made on the heels of President Donald Trump‘s inauguration, just nine days before a tragic midair collision resulted in the deaths of 64 people.

President Trump says he thinks a more modern air traffic control computer system could have prevented last week’s deadly collision between a passenger jet and Army helicopter.

Without providing any evidence, Trump harshly attacked Democrats for supposedly lowering standards for air traffic controllers, which he suggested could have led to the crash.