Summary
President Donald Trump's flagship piece of legislation - which he's labelled the "big beautiful bill" - has faced major objections from Democrats as well as from some Republicans.
It has been subject to tense negotiations amid questions about how much it could cost and its proposed cuts to some US welfare schemes.
Elon Musk has also weighed in, repeating threats to form a new political party if the "insane spending bill passes".
Claims made about the bill's possible impact in three key areas - the US national finances, medical cover, and taxes, have been checked by an independent organization.