The US government is facing its first shutdown since 2013 after an impasse over immigration impeded negotiations between Democrats and Republicans in Congress and the White House. Sam Fleming in Washington explains what is at stake<br /><br />► Subscribe to FT.com here: http://bit.ly/2r8RJzM<br /><br />► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br /><br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes