A new report suggests that key elements of a potential deal to end the federal government shutdown are beginning to take shape — though it remains uncertain when, or even if, all sides will reach an agreement.

According to the proposed “three-legged” plan includes three main components: a Senate vote on Affordable Care Act tax credits, a short-term continuing resolution to give negotiators more time to finalize a full-year budget for the fiscal year that began October 1, and a separate vote to fund military construction, the legislative branch, and agriculture programs.

“I think we’re getting close to an off-ramp here,” Senate Majority Leader John Thune, a Republican from South Dakota, told the outlet.

Senate Minority Whip Dick Durbin (D-IL) said congressional leaders “seem more optimistic” about reaching a breakthrough to end the shutdown.