On this episode of Trumponomics, we explore the impact of President Donald Trump’s economic policies on the standing of the US dollar, and the consequences for the US and global economies if the greenback is no longer the world’s primary reserve currency. As our guests explain, it seems that a reckoning has been in the making for some time.

Barry Eichengreen, professor of economics and political science at the University of California Berkeley, joins along with Bloomberg Washington reporter Saleha Mohsin to discuss how reserve currencies come about, how the US dollar ascended to that role and what happens if it falls back to earth.