The House Budget Committee has scheduled a rare Sunday night session in an attempt to advance President Donald Trump's "One Big Beautiful Bill Act."

A sweeping US tax and spending bill has overcome days of Republican conflict to advance through a key committee and move one step closer to a full vote in the House. Four hard-line Republican congressmen - who had previously torpedoed progress due to concerns the cuts were not deep enough to reduce the national debt - allowed the bill to go forward on Sunday night.