The recent chronic delays and cancellations at New Jersey’s largest airport have highlighted the shortage of air traffic controllers and the aging equipment they use, which President Donald Trump's administration wants to replace.

Transportation Secretary Sean Duffy said he has a plan to upgrade old air traffic control tech but warned more flight disruptions could come first.

NBC’s Kristen Welker grilled Sean Duffy on the repeated air traffic control outages at Newark Liberty Airport and the transportation secretary didn’t seem convinced that his agency has a handle on the ongoing crisis.

Newark Liberty International Airport is facing another FAA-imposed ground delay due to staffing shortages, after a telecommunications issue led to delays on Sunday.

Transportation Secretary Sean Duffy joins 'Squawk Box' to discuss the ongoing delays and air traffic control outages at Newark airport, the launch of a Newark airport emergency task force, whether it's safe to fly in the U.

Similar to last summer, there is currently a nationwide shortage of air traffic controllers, which will “take time” to replenish, according to Transportation Secretary Sean Duffy.

Sean Duffy blames Biden for Newark airport crisis, but also says it should’ve been fixed during Covid — when Trump was in office - Former transportation secretary said Duffy should spend ‘less time bl

Transportation Secretary Sean Duffy blamed the Biden administration for the recent chaos at the Newark Liberty International Airport — accusing them of bungling last year’s move of air traffic

The shortage on Monday forced the F.A.A. to delay flights to the busy airport for up to nearly seven hours, the latest problem to plague the airport.