Grijalva and other progressives are also angry with the bipartisan Problem Solvers Caucus, a coalition of moderate Republicans and Democrats who have signed a pledge to vote together on issues where 75 percent of the group, and 51 percent of both the Republicans and Democrats in the group, agree.

Progressives see the Problem Solvers as obstructionist, despite the group’s stated ambition to untangle political knots.

“The problem with the Problem Solvers is they’ve made triangulation an art form,” said Grijalva. “In action, [they’re] dominated by the Republican agenda.”

Rep. Josh Gottheimer (D-N.J.), a co-chairman of the Problem Solvers Caucus, told The Hill in an interview that getting a bill passed and signed into law quickly was important for the emergency border supplemental.