DALLAS - Democrats participating in the 26-hour sit-in on the floor of the U.S. House chamber last week should face an investigation to see whether they violated any rules in the legislative body, said U.S. Rep. Pete Sessions, R-Dallas, on WFAA's Inside Texas Politics Sunday morning.

"There was a complete lack of [respect] and I believe what they did is not only wrong but that they should be held accountable through an ethics process for that," added Congressman Sessions.

House Democrats staged a sit-in beginning last Wednesday on the House floor, demanding a vote on legislation that would ban people on the Terror Watch List from purchasing firearms.

When Speaker Paul Ryan tried to continue conducting House business, Democrats shouted him down in an unprecedented act of defiance.

Several arguments erupted on the floor, including a confrontation between Rep. Louie Gohmert, R-Texas, and several Democrats.

U.S. Representatives Eddie Bernice Johnson, D-Dallas, and Marc Veasey, D-Fort Worth, both participated in the sit-in.

When the House went into recess Wednesday night and live camera feeds were cut, Democratic House members used Periscope and Facebook Live to continue giving the public look at their spontaneous protest.

"They should not have used that nor would we allow a bunch of people at a court room to take advantage of a courtroom,” Sessions said. “There are places that business is done where decorum is utilized and where we respect each other.”

Mobile phones are not allowed on the floor, he added.

"If I were in a position I would move the case for us to ethically under ethics rules to hold people accountable," said Sessions.

He is chairman of the House Rules Committee but said this issue would likely be addressed by the House Administration Committee.

But Democrats had no leverage and called it quits on Thursday afternoon -- 26 hours after it began -- when the body adjourned for the July 4 break.

Still, Democrats said they will continue spontaneous protests and pushing for both banning gun purchases for people on the Terror Watch List and closing loopholes by requiring background checks for firearms bought at trade shows and in private transactions.

WATCH: Inside Texas Politics (06/26/16)