Senate Aviation Subcommittee Ranking Member Tammy Duckworth said Friday that she will demand answers from the Federal Aviation Administration regarding an hours-long nationwide ground stop it issued earlier in the day.

Thousands of flights have been canceled and delayed amid the ground stop, which the Trump administration has stated is the result of a telecommunications outage throughout the FAA.

Duckworth, a former Army helicopter pilot and a Democrat, signaled that she will be conducting a formal investigation into the issues and said she would demand answers from the administration. 

"The safety of our skies is built on redundancies," she said on X. "Whatever led to the nationwide ground stop will warrant a thorough and complete investigation. As Aviation Subcommittee Ranking Member, I'll be demanding answers from the FAA."

Other Democrats have also weighed in, including Senate Committee on Commerce, Science, and Transportation Ranking Member Maria Cantwell, Wash., who told CNN that her committee will be reviewing technology issues related to communication.

“Technology issues related to how planes communicate through primary frequencies, backup frequencies, and other issues will be something the Commerce Committee will be reviewing,” Cantwell said in a statement.

House Homeland Security Democrats blasted the Trump administration in its own statement for the debacle, claiming the administration is "out of its depth." 

"What the hell is going on? Trump and his cabinet are completely out of their depth," the group said on X. "Their incompetence, secrecy, and recklessness are putting Americans in danger—and they can’t even clearly explain to the American people what’s happening."

Misty Severi is a news reporter for Just The News. You can follow her on X for more coverage.