How the Senate Parliamentarian Tripped Up Trump’s Tax Bill

For Republicans racing to pass President Donald Trump’s mega-bill, the devil is in the procedural details.

After passing in the US House of Representatives, Trump’s “big, beautiful” tax-and-spending package is under negotiation in the Senate. With a slim majority in both chambers, Republicans can only pass the legislation through a process called reconciliation, which limits the components of a legislative package to those related to the federal budget.