The American Federation of Government Employees accused the Trump administration of retaliating against the labor group over their efforts to block the mass firing of probationary workers across government.

The Trump administration says the move will improve the passenger experience, but union officials fear it will harm morale and hurt recruiting efforts.

The Department of Homeland Security, under Secretary Kristi Noem, ended its collective bargaining with thousands of employees under the Transportation Security Administration Friday. The move, which affects tens of thousands of employees,

A union representing Transportation Security Administration workers calls the Department of Homeland Security's decision to end the collective bargaining agreement with them an “unprovoked attack.”

A union representing Transportation Security Administration workers calls the Department of Homeland Security's decision to end the agreement an 'unprovoked attack.'

The largest federal government employee union is alleging in a new lawsuit that the Trump administration violated its First Amendment rights and the "hallowed" sanctity of contracts by canceling a collective bargaining agreement covering Transportation Security Administration (TSA) airport security screeners.