WASHINGTON — Speaker Paul Ryan is considering how to punish Democrats for last month's House floor sit-in, even as the chamber's top Democrat mocked the GOP threats and didn't rule out reviving the disruptive move to demand gun votes.

“Make my day. Make my day,” House Minority Leader Nancy Pelosi, D-Calif., said Thursday of Republican steps toward penalizing Democrats for their 26-hour protest.

The two leaders' remarks came as Republicans struggled to resolve internal differences that have imperiled a GOP-written gun and anti-terror bill.

Ryan's and Pelosi's comments underscored that partisan tensions remain high over the election-year confrontation over guns prompted by last month's mass shooting in Orlando, Fla. The statement by Ryan, R-Wis., also highlighted the pressure he faces from rank-and-file Republicans to discipline Democrats for their overnight takeover of the chamber's floor.

Democrats resumed a different form of protest Thursday, as scores of lawmakers trooped to the House microphone holding photographs of people killed by guns and asked the House to debate legislation tightening background checks for firearms buyers. Their requests were denied.

Democrats read gun victims' names and said each was “a victim of gun violence who never received a moment of silence on the House floor.” That was a derisive reference to the moments of silence the House often conducts after mass shootings.

Democrats say the House should take concrete action by enacting gun restrictions.

Ryan did not rule out a vote of censure or reprimand for sit-in participants.

“We're looking at all of those things,” he said, adding that Republicans didn't want to make a decision “in a rash, wrong way.”