At the GOP’s annual retreat, House Republicans agreed overall to the plan as a first step toward earmark reform. They also urged Democrats to accept the proposal at their party’s annual retreat, which is set for this week.

Ninety-nine co-sponsors, including Rep. Jeff Flake of Arizona, Rep. Jeb Hensarling of Texas, and Rep. Mike Pence of Indiana, have joined the effort because of their criticism of earmarks. Flake, Hensarling, and Pence are Republicans.