President Trump pressed Republican leaders in the House and Senate today to pass the party’s sweeping economic and domestic policy bill by the end of the week.

But the legislation, which would expand tax cuts, cut Medicaid and add an estimated $3.3 trillion to the debt over the next decade, still faces a bumpy path before it becomes law. Here’s a look at nearly everything in the bill, and how much it would cost or save.

Today, the Senate inched closer to a final vote. It held an hourslong vote-a-thon in which lawmakers slogged through many proposed amendments. Eventually that will end, and Republicans will be faced with a bigger challenge: uniting enough senators behind the bill. Already two Republicans have announced their opposition, and four defectors could kill it. Here’s who appeared to still be on the fence.

Even if Republicans manage to squeeze the bill through the Senate, its fate is no more certain in the House. There, hard-right conservatives have raised alarm about the bill’s deficit impact, and other Republicans have objected to the Medicaid cuts.

Among the loud critics of the legislation is Elon Musk, Trump’s former close adviser. He wrote on social media today that Republicans who vote for the bill will “lose their primary next year if it is the last thing I do on this Earth.”