Debt ceiling deal shifts with new confidence and untested relationships.

Negotiators from both parties are confident that a compromise on the debt ceiling can be reached before a federal default, but rank-and-file lawmakers in both parties are raising concerns about the concessions their leaders have made. Republicans are pushing for tougher work requirements for federal assistance programs, while Democrats are opposed to such measures. Spending levels and the length of the government's borrowing authority are also points of contention. Party leaders will have to navigate these pressures to sell an emerging agreement to their respective troops.