It’s been a brutal month for Newark Liberty International Airport, as telecommunications and radar outages have plagued one of the nation’s busiest airports, triggering delays and cancellations for thousands of passengers.

Amid dire conditions at the airport, an airline operations crew has had to figure out how to get more than 600 flights a day to take off and land without incident.

The Department of Justice sued four New Jersey cities Thursday for allegedly obstructing federal immigration authorities with their sanctuary policies, The Post can exclusively