Why healthcare spending is at the center of the US government shutdown battle

Democrats said they won't vote for legislation unless Republicans reverse Medicaid cuts and extend subsidies

• US politics - latest updates

If the federal government shuts down on Wednesday, it will likely be, in part, due to a battle between Democrats and Republicans over healthcare spending.

The Democrats have said that they will not vote for legislation to keep the government open unless Donald Trump and Republicans, who hold the majority in Congress, agree to reverse cuts to Medicaid and extend subsidies for Affordable Care Act plans.