House Republicans were jubilant after muscling through President Donald Trump’s “big, beautiful” tax and immigration package by a single vote. But across the Capitol, senators were more cautious. Senate Majority Leader John Thune can afford to lose three Republican senators and still pass the bill,

The House passed the “Big Beautiful Bill Act” in the wee hours of Thursday after more than seven hours of debate on the floor — and that doesn’t include the nearly 22-hour hearing beforehand that lasted the entirety of Wednesday.

The House-passed reconciliation bill containing most of President Donald Trump’s agenda won’t clear the Senate in its current form. CQ Roll Call’s Caitlin Reilly, Peter Cohn and David Lerman outline the changes that could be on the table and the competing demands among Senate Republicans that will make final passage a tough slog.