Republicans deferred some of their most painful spending cuts until after the midterm elections.

Among the most expensive pieces of legislation in years, the Republican bill could reshape the country’s finances for a generation.

© Haiyun Jiang/The New York Times

Senate Republicans used their majority on Monday to set a new budgeting precedent, disregarding longstanding rules affecting which bills can be shielded from a filibuster.

© Eric Lee for The New York Times

Senate Republicans are charging forward with a plan to disregard the chamber’s longtime rules affecting what bills can be passed along party lines.

A new analysis showing the legislation would be far more expensive than the House version could complicate its chances of final passage in that chamber, where fiscal hawks have said the cost must not grow.

© Tierney L. Cross/The New York Times

A new analysis showing the legislation would be far more expensive than the House version could complicate its chances of final passage in that chamber, where fiscal hawks have said the cost must not grow.

© Tierney L. Cross/The New York Times

Republican leaders barely scaled a key procedural hurdle to bring up the bill, but Democrats delayed its consideration and it was unclear whether the G.O.P. had the votes to pass it.

© Eric Lee/The New York Times