Economists warn that working-class Americans have the most to lose in a high-stakes game of chicken President Donald Trump is playing as he imposes steep tariffs in his first 100 days.

This was driven by a drop in government spending and a surge in imports - which count against growth - as firms raced to get good into the country ahead of tariffs. Today's report is the most comprehensive reading of how the world's largest economy is holding up following the introduction of import taxes by President Donald Trump,