U.S. air travel turmoil deepened as more than 5,600 flights were delayed nationwide on Monday, with air traffic controller absences surging as the federal government shutdown reached its 27th day.

Air traffic controllers struggle without paychecks during 27-day shutdown. Expert predicts travel chaos similar to 2019 unless government reopens soon.

Operations at Newark Liberty on Monday were impacted by massive delays from Sunday that spilled over. Later, a ground stop was issued.

Then, on April 25, 1980, along came then-Attorney General Benjamin Civiletti with a landmark opinion: Continuing to operate an agency without official appropriations, he ruled in response to a lawmaker’s query, constituted a violation of an obscure law called the 1884 Antideficiency Act. It was all downhill from there.

The coming Nov. 1 open enrollment date for Obamacare could be an inflection point in the ongoing government shutdown.

It's been nearly a month since the partial government shutdown has been in effect, but the real pain is expected to kick in on Nov. 1

A food shelf is open at MSP Airport​ in support of federal employees who are working without pay during the government shutdown​.

Kaitlan Collins breaks down how people across America are feeling the impact of the second longest government shutdown in U.S. history.