The House Republican stalemate continues.

For the third straight day, Rep. Kevin McCarthy (R-CA) and Republican lawmakers were unable to break their deadlock in voting for the next speaker of the House. As GOP negotiations continued, 20 members of the Republican conference maintained their steadfast opposition to McCarthy’s bid for the gavel. The seventh, eighth, ninth, tenth and eleventh rounds of balloting all failed to deliver McCarthy a majority of votes or show much movement in his direction.

This speaker election has now gone on longer than the one in 1923, which lasted nine rounds, and longer than any since before the Civil War.

Some movement may come soon, though. Rep. Pete Sessions (R-TX) told CNN Thursday evening that the talks had yielded some real progress. "The newest word is that there is some sort of a breakthrough, not towards victory, but towards ending the numbers, reducing them, and evidently that's going to take place tonight,” he said.

Negotiators reportedly have put a deal in writing, but any breakthrough still may not be enough to fully resolve the impasse.

McCarthy reportedly has made additional concessions to the group of GOP rebels, agreeing to nearly all their demands, including allowing any single House member to offer a “motion to vacate the chair” — which would effectively grant the right-wing holdouts the leverage to depose him as speaker at any time. McCarthy’s offer reportedly also would put more House Freedom Caucus members on the Rules Committee and would guarantee floor votes on term limits for members and border security legislation.

Conservatives reportedly were also pressing for plum committee and subcommittee posts and standalone votes for the 12 annual appropriations bills and separate votes on earmarks.

In another effort to win over the rebels, the conservative Club for Growth on Wednesday night announced it would back McCarthy for speaker as part of a deal in which the McCarthy-aligned Congressional Leadership Fund, a super PAC, agreed to not spend money in open-seat primaries in GOP districts. That deal could help anti-establishment conservatives land more nominations.

Yet the ongoing negotiations failed to win McCarthy any new votes through four more rounds of voting on Thursday.

“We’re just gonna keep working until we solve it,” McCarthy told reporters ahead of the seventh vote. “We’re going to go in here; we’re going to have a vote. Nothing is going to change. But what we’re doing is we’re having really good progress.”

That progress remained under warps into the evening.