Speaker John Boehner (R-Ohio) urged Republicans to stick together Friday at a closed-door conference meeting, leaving for another day talk of a possible “grand bargain” to end standoffs over the government shutdown and raising the debt ceiling.

“This isn’t some damn game,” Boehner told reporters after the conference, angrily responding to reports that the White House thought it was winning the showdown.

Lawmakers emerging from the meeting said Boehner told his colleagues they are locked in an “epic battle” with President Obama and Democrats on the shutdown, and vowed they would not “roll over.”