Twitter's Periscope Plays Crucial Role in Democratic Sit-in

After the TV cameras were cut, representatives took out their smartphones.

— -- The Democratic sit-in over gun control last night almost fell into a broadcasting black hole until tech savvy representatives took out their smartphones and began broadcasting on Periscope.

As of Wednesday night, tweets sent with Periscopes from Rep. Scott Peters (D-California) and Rep. Eric Swalwell had been viewed more than 1 million times, according to Twitter's communications team.

C-SPAN, which broadcasts House of Representatives sessions, was unable to televise the demonstration using its cameras but found a clever way around the rules by putting Peters' Periscope stream on the air and later using a Facebook Live video from Rep. Beto O'Rourke (D-Texas).

"This is the first time we’ve shown this. We’ve used Periscope and social media as part of our overall coverage. But what we’re showing right now is unusual and extraordinary," Howard Mortman, C-SPAN's communications director, told The Washingtonian.

We each hold the name of a victim of gun violence. My sign reads "Steven Curnow." #NoBillNoBreak #EnoughIsEnough pic.twitter.com/yJNaxQChwF

— Adam Schiff (@RepAdamSchiff) June 23, 2016

While Republicans dismissed the demonstrations as a "stunt," Democratic lawmakers found support from some of their constituents through social media, where many people cheered them on with the hashtag #NoBillNoBreak and #DisarmHate, among others.

There were also snacks delivered to the chamber and the promise of pizza, according to Rep. John Yarmuth.

In a 3:30 a.m. news conference amid #NoBillNoBreak marathon, Democrats declared victory after more than 17 hours of turmoil on the House floor, despite not getting the votes on gun control they had sought.

ABC News' Katherine Faulders and Ben Siegel contributed to this report.

We each hold the name of a victim of gun violence. My sign reads "Steven Curnow." #NoBillNoBreak #EnoughIsEnough pic.twitter.com/yJNaxQChwF

While Republicans dismissed the demonstrations as a "stunt," Democratic lawmakers found support from some of their constituents through social media, where many people cheered them on with the hashtag #NoBillNoBreak and #DisarmHate, among others.

There were also snacks delivered to the chamber and the promise of pizza, according to Rep. John Yarmuth.

In a 3:30 a.m. news conference amid #NoBillNoBreak marathon, Democrats declared victory after more than 17 hours of turmoil on the House floor, despite not getting the votes on gun control they had sought.

ABC News' Katherine Faulders and Ben Siegel contributed to this report.